- 1 Why is a thin ozone layer over Antarctica Of particular concern to scientists A?
- 2 Why is the ozone depletion over Antarctica?
- 3 Why is there no mining in Antarctica?
- 4 How much of the world’s freshwater supply Do Antarctica’s ice caps contain?
- 5 When did scientists discover the ozone hole?
- 6 Why is the hole in the ozone greatest over Antarctica quizlet?
- 7 Why is ozone depletion more over the South Pole?
- 8 Is there gold on Antarctica?
- 9 What would Antarctica be like without ice?
- 10 What are the threats to Antarctica?
- 11 Why is the ice in Antarctica freshwater?
- 12 Why is Antarctica the best place to find meteorites?
- 13 Who owns the Antarctic?
- 14 How did scientists discover the hole in the ozone layer?
- 15 Who discovered ozone hole over Antarctica?
- 16 Which of the following scientist founded the ozone layer in laboratory?
- 17 Why is ozone depletion greater over the South Pole than the Arctic quizlet?
- 18 What effect does the ozone layer have on earth quizlet?
- 19 What is meant by the hole in the ozone layer quizlet?
- 20 What is ozone layer depletion and its effects?
- 21 What is special about the South Pole versus the North Pole that leads to ozone depletion only at the South Pole?
- 22 What is ozone layer depletion and its effects Mcq?
- 23 Can you legally go to Antarctica?
- 24 Which country is the richest in gold?
- 25 Does Antarctica have oil?
- 26 What flag is Antarctica?
- 27 Is there land under Arctic?
- 28 When was the last ice age?
- 29 How does scientific research threaten Antarctica?
- 30 What kinds of things are scientists studying in Antarctica?
- 31 Why is global warming a threat to Antarctica?
- 32 What would happen if Greenland melted?
- 33 When was the last time Antarctica was ice free?
- 34 Is Greenland all ice?
- 35 Why you don’t hear about the ozone layer anymore
- 36 Climate 101: Ozone Depletion | National Geographic
- 37 Ozone Hole – Why Antarctica?
- 38 Why is there a Hole in the Ozone Layer? + more videos | #aumsum #kids #science #education #children
Why is a thin ozone layer over Antarctica Of particular concern to scientists A?
Explanation: Excessive UV-B exposure (if there is too little ozone) causes a variety of deleterious effects on earth life-forms. These effects include severe sunburn and the inducement of cancers.
Why is the ozone depletion over Antarctica?
The Antarctic ozone hole is a thinning or depletion of ozone in the stratosphere over the Antarctic each spring. This damage occurs due to the presence of chlorine and bromine from ozone depleting substances in the stratosphere and the specific meteorological conditions over the Antarctic.
Why is there no mining in Antarctica?
Explanation: Mining in Antarctica prohibited under the Antarctic Treaty, which completely banned it under the Environmental Protocol. … Environmental protection measures were set out under the CRAMRA ban mining. In 1998, it entered into force after France and Australia did not agree on mining in the region.
How much of the world’s freshwater supply Do Antarctica’s ice caps contain?
When did scientists discover the ozone hole?
Why is the hole in the ozone greatest over Antarctica quizlet?
Why is the hole in the ozone greatest over Antarctica? Chlorine freed from CFC’s elsewhere migrate to the Antarctic region, where they are trapped by the polar vortex. Which of the following is true of the ionosphere? The region principally absorbs gamma rays, x-rays, and interacts with the solar wind.
Why is ozone depletion more over the South Pole?
Explanation: The phenomenon of the ozone hole occurred in the Antarctic region primarily due to catalytic breakdown of ozone molecules by halogenated compounds.
Is there gold on Antarctica?
Gold, platinum, copper, iron and coal have also been found in Antarctica. And diamonds are already mined today in some of the world’s colder reaches of northern Canada and Siberia.
What would Antarctica be like without ice?
What are the threats to Antarctica?
- Climate change. Climate change is the greatest long-term threat to the region. …
- Increased fishing pressure and illegal fishing.
- Marine pollution. Persistent organic pollutants (POPs) have been measured around Antarctica and detected in wildlife. …
- Invasive species.
Why is the ice in Antarctica freshwater?
Much of Antarctica is fringed by ice shelves. Ross and Ronne-Filchner ice shelves each have areas greater than the British Isles. Across the base of ice shelves, sea water and ice come into contact. Where this sea water is warm enough, the ice shelf will melt, adding cold fresh water to the sea.
Why is Antarctica the best place to find meteorites?
Who owns the Antarctic?
How did scientists discover the hole in the ozone layer?
But in the early 1980s, through a combination of ground-based and satellite measurements, scientists began to realize that Earth’s natural sunscreen was thinning dramatically over the South Pole each spring. This thinning of the ozone layer over Antarctica came to be known as the ozone hole.
Who discovered ozone hole over Antarctica?
Which of the following scientist founded the ozone layer in laboratory?
Why is ozone depletion greater over the South Pole than the Arctic quizlet?
UV-C radiation is absorbed by which two substances in the stratosphere? Why is ozone depletion greater over the South Pole than the Arctic? The air above the North Pole is not as cold, so that fewer polar stratospheric clouds form. … – Harmful UV radiation could have an effect on the carbon dioxide balance of our planet.
What effect does the ozone layer have on earth quizlet?
Stratospheric ozone filters out most of the sun’s potentially harmful shortwave ultraviolet (UV) radiation. If this ozone becomes depleted, then more UV rays will reach the earth.
What is meant by the hole in the ozone layer quizlet?
Ozone hole. a thinning part of the ozone layer. A chemical reaction caused by CFC’s and other compounds in the atmosphere.
What is ozone layer depletion and its effects?
Ozone layer depletion causes increased UV radiation levels at the Earth’s surface, which is damaging to human health. Negative effects include increases in certain types of skin cancers, eye cataracts and immune deficiency disorders. … UV rays also affect plant growth, reducing agricultural productivity.
What is special about the South Pole versus the North Pole that leads to ozone depletion only at the South Pole?
What is special about the South Pole versus the North Pole that leads to ozone depletion only at the south Pole? Polar stratospheric clouds form almost exclusively at the South Pole. … Ozone is removed by its reaction with water vapor.
What is ozone layer depletion and its effects Mcq?
Ozone depletion is the destruction of stratospheric ozone by free radicals like chlorine, bromine when they reach the upper atmosphere. The UV radiations break down the Chlorine molecules into Chlorine atoms.
Can you legally go to Antarctica?
Antarctica is the only continent on Earth without a native human population. … Since no country owns Antarctica, no visa is required to travel there. If you are a citizen of a country that is a signatory of the Antarctic Treaty, you do need to get permission to travel to Antarctica.
Which country is the richest in gold?
China is the number one producer of gold in the world. The USGS estimates that China mined 455 metric tons of gold in 2016. Since gold began to be mined in the 1970s, gold production in China has rapidly increased. China finally overtook South Africa in 2007 as the world’s top gold producer.
Does Antarctica have oil?
There are known reserves of oil and coal as well as mineral deposits in Antarctica, although detailed knowledge of these mineral deposits is sketchy. In the last 50 years of scientific research, no large deposits of mineralized rocks have been found.
What flag is Antarctica?
Antarctica has no universally-recognized flag as the condominium that governs the continent has not yet formally selected one, although some individual Antarctic programs have formally adopted True South as the flag of the continent. Dozens of unofficial designs have also been proposed.
Is there land under Arctic?
Instead it’s all ice that’s floating on top of the Arctic Ocean. Over the past four decades, scientists have seen a steep decline in both the amount and thickness of Arctic sea ice during the summer and winter months.
When was the last ice age?
How does scientific research threaten Antarctica?
Antarctica and its surrounding waters are under pressure from a variety of forces that are already transforming the area, scientists warn. … Visits by tourists, researchers and other people also threaten to change Antarctica, as does the harvesting of animals like krill that are key to the Antarctic food chain.
What kinds of things are scientists studying in Antarctica?
WHAT DO SCIENTISTS STUDY IN ANTARCTICA? Scientists from all over the world visit Antarctica to study the climate, weather, geology, and wildlife of this unique region. Their research has helped to highlight global problems, such as climate change.
Why is global warming a threat to Antarctica?
What would happen if Greenland melted?
If all the ice covering Antarctica , Greenland, and in mountain glaciers around the world were to melt, sea level would rise about 70 meters (230 feet). The ocean would cover all the coastal cities. And land area would shrink significantly.
When was the last time Antarctica was ice free?
about 34 million years ago
It was ice-free until about 34 million years ago, when it became covered with ice. The lowest natural air temperature ever recorded on Earth was −89.2 °C (−128.6 °F) at the Russian Vostok Station in Antarctica on 21 July 1983.
Is Greenland all ice?
Why you don’t hear about the ozone layer anymore
Climate 101: Ozone Depletion | National Geographic
Ozone Hole – Why Antarctica?
Why is there a Hole in the Ozone Layer? + more videos | #aumsum #kids #science #education #children
why is there no mining in antarctica, despite evidence of mineral resources on the continent?
which of the following areas has the lowest population density?
how much of the world’s freshwater supply do antarctica’s ice caps contain?
the first inhabitants of oceania are believed to have come from which continent?
ron is moving to oceania
which of the following features has been the most influential
ron is moving to oceania because his mining company recently opened a new operation there