1. If climate change continues unabated, the impact on the Amazon is projected t
ID: 292735 • Letter: 1
Question
1.
If climate change continues unabated, the impact on the Amazon is projected to be
the destruction of the entire forest within 30 years.
an increase in biodiversity.
an increase in the standard of living of indigenous peoples.
further forest growth due to higher levels of carbon dioxide.
forest degradation and the release of more carbon dioxide into the atmosphere.
2/ .
If climate change continues unabated, the impact on the Great Barrier Reef is projected to be
an increase in the frequency of bleaching events and loss of reef biodiversity.
the rapid destruction of the reef ecosystem.
more rapid growth of the reef due to warmer water temperatures.
further damage to the reef by an increase in freshwater runoff.
an increase in reef biodiversity due to the rapid growth of algae.
3.
An increase in ocean acidity will
make it more difficult for algae to grow.
limit the ability of animals to form carbonate shells.
enhance the ability of animals to form carbonate shells.
increase the rate at which limestone rock is formed.
increase the pH of the oceans.
4.
As global temperature rises, ice sheets in the Himalayas will
advance as winter snowfall increases because there us more moisture in warming air.
not change as they are too high and cold to be affected by climate change.
almost disappear over the next 50 years.
melt at an ever faster rate, reducing water reserves over large parts of southern Asia.
melt slowly, providing a steady source of water to southern Asia.
5.
Rising sea level is
an immediate threat to low-lying delta communities.
due only to the melting of ice sheets in Antarctica.
killing coral reefs at an astonishing rate.
not an immediate environmental threat.
not expected to impact human settlements for at least 100 years.
the destruction of the entire forest within 30 years.
an increase in biodiversity.
an increase in the standard of living of indigenous peoples.
further forest growth due to higher levels of carbon dioxide.
forest degradation and the release of more carbon dioxide into the atmosphere.
Explanation / Answer
1. If climate change remains unabated, the Amazon forests will degrade and will lead to higher levels of carbon dioxide and changing rain patterns. This will, in turn affect the region's forests.
2. If climate change remains unabated, the Great Barrier Reef will be prone to major destruction. The increase in temperature increase the coral mass bleaching and leads to loss of biodiversity. the answer is the first option.
3. An increase in ocean acidity will limit the shell growth of the organisms, as acidic waters will destroy the carbonate shells.
4. As global temperature increases, the Himalayn glaciers melts and retreats. By observing the trend, the researchers believe that the glaciers will retreat and disappear within the next 50 years.
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