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10.Which of the following is a consequence of climate change on polar regions?
A)Increased ice formation
B)Unchanged ice levels
C)Melting of ice sheets
D)Stabilization of ice sheets
Answer: C - Melting of ice sheets
Explanation: The lesson indicates that ice is melting worldwide, especially at the Earth's poles, including mountain glaciers, ice sheets covering West Antarctica and Greenland, and Arctic sea ice.
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Social EUEE, [6/11/24, 2:50 PM]
GEOGRAPHY G-12 UNIT 7 QUESTIONS
UNIT 7
CONTEMPORARY GLOBAL GEOGRAPHICAL ISSUES AND CONCERNS
7.1. Climate Change
Here are 30 MCQs with their answers and reasons.
1. What is the primary cause of climate change as discussed in the lesson?
A) Volcanic eruptions
B) Solar variations
C) Human actions
D) Ocean currents
Answer: C - Human actions
Explanation: The lesson specifies that climate change is mainly caused by human activities, particularly the emission of greenhouse gases.
2. What international agreement aimed at addressing climate change was endorsed in 2015?
A) Kyoto Protocol
B) Paris Agreement
C) Montreal Protocol
D) Rio Declaration
Answer: B - Paris Agreement
Explanation: In 2015, 195 Parties to the UN Framework Convention on Climate Change endorsed the Paris Agreement, committing to curb emissions and manage climate risks.
3.According to the lesson, if greenhouse gas emissions stopped today, how would global temperatures respond?
A) Continue to rise indefinitely
B) Begin to flatten within a few years
C) Immediately drop to pre-industrial levels
D) Increase at a faster rate
Answer: B - Begin to flatten within a few years
Explanation: The lesson indicates that if we ceased emitting greenhouse gases immediately, the rise in global temperatures would start to stabilize within a few years.
4.What has been the trend in global sea levels, as mentioned in the lesson?
A)They have remained constant
B) They are falling
C) They are rising
D)They fluctuate unpredictably
Answer: C - They are rising
Explanation: The lesson notes that global sea levels are rising at an average rate of 0.13 inches (3.2 millimetres) per year, with the rate of rise increasing in recent years.
5.What is the predicted impact on global sea levels due to climate change?
A)No significant change
B)A decrease in sea levels
C)An increase in sea levels
D)Fluctuating sea levels without a clear trend
Answer: C - An increase in sea levels
Explanation: The lesson notes that ice melting worldwide, especially at the Earth's poles, contributes to sea-level rise, with global sea levels rising 0.13 inches (3.2 millimetres) a year and the rate of rise increasing in recent years.
6.How has climate change affected the number of glaciers in Montana's Glacier National Park since 1910?
A)The number has increased
B)The number has stayed the same
C)The number has decreased
D)The park was established after 1910
Answer: C - The number has decreased
Explanation: According to the lesson, the number of glaciers in Montana's Glacier National Park has declined to fewer than 30 from more than 150 in 1910.
7.Which species' populations have collapsed by 90 percent or more in Antarctica due to vanishing ice?
A)Emperor penguins
B)Adélie penguins
C)Polar bears
D)Seals
Answer: B - Adélie penguins
Explanation: The lesson mentions that vanishing ice has challenged species such as the Adélie penguin in Antarctica, where some populations on the western peninsula have collapsed by 90 percent or more.
8.What is a consequence of rising temperatures on wildlife according to the lesson?
A)Decreased migration of species
B)Increased stability of habitats
C)Migration of species to cooler areas
D)No significant impact on wildlife
Answer: C - Migration of species to cooler areas
Explanation: The lesson states that rising temperatures have caused some species, like butterflies, foxes, and alpine plants, to migrate farther north or to higher, cooler areas.
9.What has been the trend in precipitation patterns globally due to climate change?
Social EUEE, [6/11/24, 2:51 PM]
A)A global decrease in precipitation
B)No significant changes in precipitation
C)An increase in precipitation on average
D)Precipitation has become less predictable
Answer: C - An increase in precipitation on average
Explanation: The lesson indicates that precipitation (rain and snowfall) has increased across the globe, on average, though some regions are experiencing more severe droughts.
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