Welcome to your Grade 12 Geography chapter 2
After carefully reading the following 30 questions, choose the correct answer.
1.
Which theory proposes that variations in the Earth's axis and orbit cause alternating glacial and interglacial episodes?
2.
By how much has the global average temperature risen since the late nineteenth century?
3.
Which greenhouse gas is primarily released by burning fossil fuels like coal and oil?
4.
What process describes the return of rainfall to the atmosphere through tree leaves in the Amazon River Basin?
5.
According to the Third Assessment Report of the IPCC, which decade was the warmest worldwide?
6.
What is a feasible method to reduce greenhouse gas release without decreasing production?
7.
Which country announced an intention to withdraw from the Paris Agreement in mid-2017?
8.
What type of adaptation occurs after the initial impacts of climate change have already happened?
9.
Volcanic eruptions rich in which element may be responsible for cooler periods in the geologic past?
10.
What process increases desert conditions due to overgrazing and excessive cultivation?
11.
Which of the following is considered an external cause of climate change in the unit summary?
12.
Which greenhouse gas is released when trees are cut and burned or left to decay?
13.
What is the expected impact on atmospheric water vapor as the Earth warms?
14.
Which process allows leaves of trees to remove CO2 from the atmosphere?
15.
Clearing tropical rain forests leads to a decrease in which cooling process?
16.
Over what timeframe does the Milankovitch theory propose alternating glacial episodes?
17.
Which term refers to the reflectivity of a surface, such as a deforested area?
18.
Which greenhouse gas strongly absorbs infrared radiation and plays a major role in warming the lower atmosphere?
19.
What do climate models predict will happen to precipitation events as the Earth warms?
20.
Which greenhouse gas is mentioned alongside Carbon dioxide and Methane as a cause for climate change?
21.
What is the primary cause of global warming since the late nineteenth century?
22.
Which of the following is an internal cause of climate change?
23.
What does the term "adaptation" refer to in the context of climate change?
24.
Which gas stays in the atmosphere for a specific "life time" and prevents energy from escaping to space?
25.
What effect does clearing tropical rain forests have on the regional climate?
26.
Which theory focuses on the tilt of the Earth's axis as a driver of climate change?
27.
What happens to the CO2 stored in roots when trees are burned?
28.
Which phenomenon is expected to worsen as a result of global warming according to climate models?
29.
What is the impact of sulfur-rich volcanic eruptions on global climate?
30.
Which gas is NOT explicitly listed in the unit summary as a primary human-emitted greenhouse gas?
