The power of light ielts reading answers

A After hours of driving south in the pitch-black darkness of the Nevada desert, a dome of hazy gold suddenly appears on the horizon. Soon, a road sign confirms the obvious: Las Vegas 30 miles. Looking skyward, you notice that the Big Dipper is harder to find than it was an hour ago. B Light pollution—the artificial light that illuminates more than its intended target area—has become a problem of increasing concern across the country over the past 15 years.

Even fewer can be seen from large cities. In almost every town, big and small, street lights beam just as much light up and out as they do down, illuminating much more than just the street. Almost 50 percent of the light emanating from street lamps misses its intended target, and billboards, shopping centres, private homes and skyscrapers are similarly over-illuminated. C America has become so bright that in a satellite image of the United States at night, the outline of the country is visible from its lights alone.

Mark Adams, superintendent of the McDonald Observatory in west Texas, says that the very fact that city lights are visible from on high is proof of their wastefulness. And the old assumption that bright lights deter crime appears to have been a false one: A new Department of Justice report concludes that there is no documented correlation between the level of lighting and the level of crime in an area.

And contrary to popular belief, more crimes occur in broad daylight than at night. E For drivers, light can actually create a safety hazard. Glaring lights can temporarily blind drivers, increasing the likelihood of an accident.

To help prevent such accidents, some cities and states prohibit the use of lights that impair night-time vision. F Badly designed lighting can pose a threat to wildlife as well as people. Newly hatched turtles in Florida move toward beach lights instead of the more muted silver shimmer of the ocean.

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Migrating birds, confused by lights on skyscrapers, broadcast towers and lighthouses, are injured, sometimes fatally, after colliding with high, lighted structures. G So what can be done? Tucson, Arizona is taking back the night. The city has one of the best lighting ordinances in the country, and, not coincidentally, the highest concentration of observatories in the world.

H For a while, that darkness was threatened. The same thing is happening in a handful of other states, including Texas, which just passed a light pollution bill last summer. I And in the long run, everyone benefits from reduced energy costs.The neutrinos arrived promptly — so promptly, in fact, that they triggered what scientists are calling the unthinkable — that everything they have learnt, known or taught stemming from the last one hundred years of the physics discipline may need to be reconsidered.

The issue at stake is a tiny segment of time — precisely sixty nanoseconds which is sixty billionths of a second. This is how much faster than the speed of light the neutrinos managed to go in their underground travels and at a consistent rate 15, neutrinos were sent over three years. Even allowing for a margin of error of ten billionths of a second, this stands as proof that it is possible to race against light and win.

Yet each prior challenge has come to no avail, and relativity has so far refused to buckle.

the power of light ielts reading answers

So is time travel just around the corner? The prospect has certainly been wrenched much closer to the realm of possibility now that a major physical hurdle — the speed of light — has been cleared.

If particles can travel faster than light, in theory travelling back in time is possible. How anyone harnesses that to some kind of helpful end is far beyond the scope of any modern technologies, however, and will be left to future generations to explore.

Certainly, any prospective time travellers may have to overcome more physical and logical hurdles than merely overtaking the speed of light. Barjavel theorised that, if it were possible to go back in time, a time traveller could potentially kill his own grandfather. If this were to happen, however, the time traveller himself would not be born, which is already known to be true. In other words, there is a paradox in circumventing an already known future; time travel is able to facilitate past actions that mean time travel itself cannot occur.

Other possible routes have been offered, though. Novikov argued that any event causing a paradox would have zero probability. Averting the sinking of the Titanic, for example, would revoke any future imperative to stop it from sinking — it would be impossible. Saving selected passengers from the water and replacing them with realistic corpses would not be impossible, however, as the historical record would not be altered in any way.

A further possibility is that of parallel universes. Popularised by Bryce Seligman DeWitt in the s from the seminal formulation of Hugh Everettthe many-worlds interpretation holds that an alternative pathway for every conceivable occurrence actually exists.

If we were to send someone back in time, we might therefore expect never to see him again — any alterations would divert that person down a new historical trajectory. A final hypothesis, one of unidentified provenance, reroutes itself quite efficiently around the grandfather paradox. Non-existence theory suggests exactly that — a person would quite simply never exist if they altered their ancestry in ways that obstructed their own birth. They would still exist in person upon returning to the present, but any chain reactions associated with their actions would not be registered.

So, will humans one day step across the same boundary that the neutrinos have? World-renowned astrophysicist Stephen Hawking believes that once spaceships can exceed the speed of light, humans could feasibly travel millions of years into the future in order to repopulate earth in the event of a forthcoming apocalypse.

This is because, as the spaceships accelerate into the future, time would slow down around them Hawking concedes that bygone eras are off limits — this would violate the fundamental rule that cause comes before effect.

Hawking is therefore reserved yet optimistic. Questions 28—33 Do the following statements agree with the information given in Reading Passage 3? Questions 34—39 Complete the table below. Write your answers in boxes 34—39 on your answer sheet.A After hours of driving south in the pitch-black darkness of the Nevada desert, a dome of hazy gold suddenly appears on the horizon. Soon, a road sign confirms the obvious: Las Vegas 30 miles.

Looking skyward, you notice that the Big Dipper is harder to find than it was an hour ago. B Light pollution—the artificial light that illuminates more than its intended target area—has become a problem of increasing concern across the country over the past 15 years. Even fewer can be seen from large cities.

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In almost every town, big and small, street lights beam just as much light up and out as they do down, illuminating much more than just the street. Almost 50 percent of the light emanating from street lamps misses its intended target, and billboards, shopping centers, private homes and skyscrapers are similarly over-illuminated.

C America has become so bright that in a satellite image of the United States at night, the outline of the country is visible from its lights alone.

Mark Adams, superintendent of the McDonald Observatory in west Texas, says that the very fact that city lights are visible from on high is proof of their wastefulness. And the old assumption that bright lights deter crime appears to have been a false one: A new Department of Justice report concludes that there is no documented correlation between the level of lighting and the level of crime in an area.

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And contrary to popular belief, more crimes occur in broad daylight than at night. E For drivers, light can actually create a safety hazard.

the power of light ielts reading answers

Glaring lights can temporarily blind drivers, increasing the likelihood of an accident. To help prevent such accidents, some cities and states prohibit the use of lights that impair night-time vision. Newly hatched turtles in Florida move toward beach lights instead of the more muted silver shimmer of the ocean. Migrating birds, confused by lights on skyscrapers, broadcast towers and lighthouses, are injured, sometimes fatally, after colliding with high, lighted structures. G So what can be done?

Tucson, Arizona is taking back the night. The city has one of the best lighting ordinances in the country, and, not coincidentally, the highest concentration of observatories in the world. H For a while, that darkness was threatened. The same thing is happening in a handful of other states, including Texas, which just passed a light pollution bill last summer. I And in the long run, everyone benefits from reduced energy costs.

Choose the most suitable headings for paragraphs A-F from the list of headings below. NB There are more headings than paragraphs, so you will not use them all. Question Complete each of the following statements with words taken from the passage. According to a recent study, well-lit streets do not Inefficient lighting increases Efficient lights In dealing with light pollution Questions Do the following statements agree with the information given in Reading Passage 69?

Academic reading practice test 53 The power of light , The Ring Cycle , To MBA or not to MBA

One group of scientists find their observations are made more difficult by bright lights. It is expensive to reduce light pollution.Found a mistake? Let us know! Share this Practice Test.

the power of light ielts reading answers

And that is all that happens. Early cinema audiences often experienced the same confusion. In time, the idea of film became familiar, the magic was accepted -but it never stopped being magic. One effect of this realism was to educate the world about itself.

The 'star' was another natural consequence of cinema. The cinema star was effectively born in Cinema has also given a new lease of life to the idea of the story. And it has all happened so quickly. Write the correct letter, A-Jin boxes on your answer sheet. Please descibe the mistake as details as possible along with your expected correction, leave your email so we can contact with you when needed.

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IELTS READING TEST ✍️ GENERAL TRAINING- 27.12.2019 - 4K RESOLUTION 🔥 with ANSWERS!

Solution for: The power of the big screen Answer Table 1. YES Follow us on Facebook Mini ielts. The power of the big screen. Questions Reading Passage 1 has ten paragraphs, A-J. Which paragraph contains the following information? Questions Do the following statements agree with the views of the writer in Reading Passage 1?

Questions Choose the correct letter. Write the correct letter in boxes on your answer sheet. Other Tests. Total questions: A song on the brain Science.

A song on the brain. Leaf-Cutting Ants and Fungus. A New Ice Age. Flying tortoises Recent Actual Tests. Flying tortoises.This task tests whether you understand the organisation of texts and can identify the main idea or topic in each section of a text. You will be given a numbered list with headings, as well as a text divided into sections.

the power of light ielts reading answers

The headings will be in the form of short statements which summarise the information in a section. You will need to read the text sections and decide which of the headings best fits that section.

The first six paragraphs of Reading Passage 1 are lettered A-F. Choose the most suitable headings for paragraphs A-F from the list of headings below. NB There are more headings than paragraphs, so you will not use them all. For any questions where you need to write words from the passage, a hyphenated word e.

Complete each of the following statements with words taken from the passage. Do the following statements agree with the information given in Reading Passage 1?

Academic reading practice test 53 The power of light , The Ring Cycle , To MBA or not to MBA

They are not, however, real IELTS tests; they are designed to practise exam technique to help students to face the IELTS test with confidence and to perform to the best of their ability. While using this site, you agree to have read and accepted our terms of use, cookie and privacy policy.

Example Answer.Keywords in Questions. Similar words in Passage. This would also allow the island to generate most of its electricity from renewable sources, mainly waterwind and solar power.

After reading paragraph 1we can see that:. After reading paragraph 2we can see that:. From paragraph 2the device to measure electricity usage is energy monitors. After reading paragraph 2, we can see that:. The device can back renewable energy supplies renewable energy generation up is diesel generators. Do the following statements agree with the information given in Reading Passage 1? After reading paragraph 3, we can see that:. The information in Q8 and paragraph 3 is opposite to each other.

After reading paragraph 3we can see that:. After reading paragraph 4we can see that:. Which paragraph contains the following information?

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After reading paragraph 5we can see that:. Look at the following characteristics Questions and the list of periods below. Match each characteristic with the correct period, A, B or C. Write the correct letter, A, B or C. NB You may use any letter more than once.

List of periods A The agricultural age. B The industrial age. C The neo-industrial age. After reading paragraph Cwe can see that:. This characteristic in the industrial age. After reading paragraph Awe can easily see that only paragraph A mentioned the consumers and workplacesit refers to the characteristic in agricultural age.

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After reading paragraph D and Ewe can see that:. After reading paragraph B, we can see that:. It is generally agreed that changes are taking place more quickly now, and that organisations are being transformed. After reading paragraph G, we can assume that the answer for Q26 may a noun. Choose the correct letter, A, B, C or D.

Experiments by Bernard Agranoff d escribed in Reading Passage 3 involved. A injecting goldfish at different stages of the experiments. B training goldfish to do different types of task. C using different types of treatment on goldfish. D comparing the performance of different goldfish on certain tasks.

After reading paragraph 2, we could rule out option B, C and D because:. We should choose option A to be the correct answer for Q27 because:. Most findings fr om recent studies suggest that.

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ECT treatment affects both short-and long-term memories. After reading paragraph 3, we could rule out option A, B and D because:.Light reveals the world to us. It sets our biological clocks.

It triggers in our brains the sensations of colour. Light feeds us, supplying the energy for plants to grow. It inspires us with special effects like rainbows and sunsets.

Light gives us life-changing tools, from incandescent bulbs to lasers and fibre optics. There has been light from the beginning. There will be light, feebly, at the end. In all its in forms, visible and invisible, it saturates the universe. Light is more than a little bit inscrutable. Light is light- pure, but not simple. No one is quite sure how to describe it. A wave? A particle?

Yes, the scientists say Both. A human would no more linger over the concept of light than a fish would ponder the notion of water. The flicker of a candle, flooding a room with romance. The torch searching for the circuit breakers after a power cut. Her goal is to create an atmosphere, a mood — not to show off the fancy new filters that create colours of startling intensity. Light is now used for everything from laser eye surgery to telephone technology. It could even become the main power source for long- distance space travel.

In theory such a craft could accelerate to a sizeable fraction of the speed of light, without carrying fuel. What we call light is really the same thing in a different set of wavelengths as the radiation that we call radio waves or gamma rays or x- rays. But visible light is unlike any other fundamental element of the universe: it directly, regularly and dramatically interacts with our senses.

Light offers high-resolution information across great distances. So much of vital importance is communicated by visible light that almost everything from a fly to an octopus has a way to capture it — an eye, eyes, or something similar.

Visible light is powerful stuff, moving at relatively short wavelengths, which makes it biologically convenient. Not worth the trouble! Nor would it make sense for our eyes to detect infrared light though some deep-sea shrimp near hot springs do see this way.

That would include almost everything around us. There is also darkness in the daytime: shadows. There are many kinds of shadows, more than I realized until I consulted astronomer and shadow expert David Lynch in Topanga Canyon, up the coast from Santa Monica, California. Lynch points out that a shadow is filled with light reflected from the sky, otherwise it would be completely black.

Black is the way shadows on the moon looked to the Apollo astronauts, because the moon has no atmosphere and thus no sky to bounce light into the unlit crannies of the lunar surface. Lynch is a man who, when he looks at a rainbow, spots details that elude most of us. He knows, for example, that all rainbows come in pairs, and he always looks for the second rainbow a faint, parallel rainbow, with the colours in reverse order.

The intervening region is darker. What next for light? What new application will we see?