[THESE QUESTIONS ARE NOT THE SAME AS MY PREVIOUS POST) I am working on my take home quiz questions now...and i am not sure about the answers of the folowing questions...can anyone please help me to check???? THANKS A LOT!!!! (The "*" represents the answer I chose)
The primary effect on climate of a volcanic eruption is based on
A) the amount of water evaporated.
* B) how much ash is emitted.
C) whether the ash or gas reaches the stratosphere.
D) how much gas is emitted.
E) the explosive force of the eruption.
Past climate data measured with instruments extends back about
A) 30 yrs.
B) 200 yrs.
* C) 100 yrs.
D) 500 yrs.
Plate tectonics (continental drift):
A) may help us better understand the cause of the Ice Age.
* B) is probably responsible for some climatic changes that occur on a time scale of
thousands of years.
C) may be a key factor in explaining the cooling trend since the 1940s.
Which of the following are possible consequences of a CO2-induced climate change?
A) shorter growing season at higher latitudes
B) less rainfall in some regions
C) higher evaporation rates and decreased rainfall in some areas
* D) less vegetation
The atmosphere's CO2 content is rising. Which one of the following is a
significant contributor to this increase?
A) refrigerant leakage
B) rice paddies
* C) deforestation
D) aerosol spray cans
Global warming could lead to a shorter growing season at high latitudes
*A) True
B) False
Most experts agree that the process of global warming can be reversed within a
few years if there is sufficient global cooperation.
A) True
*B) False
1 c 7b
To check the answers for the given questions, let's go through each question and explanation carefully.
1) The primary effect on climate of a volcanic eruption is based on:
Answer: C) whether the ash or gas reaches the stratosphere.
Explanation: During a volcanic eruption, both ash and gases are released. However, the primary effect on climate is determined by whether the ash or gas reaches the stratosphere. When volcanic ash and gases reach the stratosphere, they can have a significant impact on global climate by reflecting sunlight and causing cooling. Therefore, option C is the correct answer.
2) Past climate data measured with instruments extends back about:
Answer: C) 100 yrs.
Explanation: When it comes to measuring climate data using instruments, the available data extends back approximately 100 years. This is because the systematic collection of climate data started to become widespread around the late 19th century and early 20th century. Hence, option C is the correct answer.
3) Plate tectonics (continental drift):
Answer: B) is probably responsible for some climatic changes that occur on a time scale of thousands of years.
Explanation: Plate tectonics, which refers to the movement of Earth's lithospheric plates, can influence climate changes over long timescales. The slow movement of continents can alter ocean currents, change the positioning of land masses, and impact atmospheric circulation patterns, which can ultimately lead to climatic changes over thousands of years. Thus, option B is the correct answer.
4) Which of the following are possible consequences of a CO2-induced climate change?
Answer: D) less vegetation.
Explanation: Increased levels of CO2 in the atmosphere can result in climate change. This, in turn, can have consequences such as changes in temperature and precipitation patterns, leading to reduced vegetation. Plants may struggle to adapt to altered conditions, resulting in decreased growth or even loss of certain plant species. Therefore, option D is the correct answer.
5) The atmosphere's CO2 content is rising. Which one of the following is a significant contributor to this increase?
Answer: C) deforestation.
Explanation: Deforestation, the clearing or removal of forests, can contribute significantly to the increase in atmospheric CO2 levels. Trees act as carbon sinks, absorbing CO2 through photosynthesis. When trees are cut down or burned, the stored carbon is released back into the atmosphere as CO2, contributing to higher concentrations. Therefore, option C is the correct answer.
6) Global warming could lead to a shorter growing season at high latitudes.
Answer: A) True.
Explanation: Global warming can impact the growing season at high latitudes, which refers to the length of time suitable for plant growth. With warmer temperatures, the growing season can shift, causing it to be shorter or longer. In the case of global warming, a shorter growing season at high latitudes can be anticipated. Therefore, option A is the correct answer.
7) Most experts agree that the process of global warming can be reversed within a few years if there is sufficient global cooperation.
Answer: B) False.
Explanation: Global warming is a complex issue that requires substantial efforts to address and mitigate. While actions taken to reduce greenhouse gas emissions and limit global warming can make a positive impact, it is unlikely that the process can be reversed within a few years even with significant global cooperation. The effects of greenhouse gases in the atmosphere can persist for a long time, and it would take sustained efforts over a much longer period to achieve significant reversal. Hence, option B is the correct answer.
Please note that these answers are based on the information provided in the explanation. It is always important to cross-check with reliable sources to ensure accuracy.