What is the major cause of the greenhouse effect?
A. carbon dioxide in the water
B. carbon dioxide in the atmosphere
C. soot from coal plants in the water
D. soot from coal plants in the atmosphere
B. carbon dioxide in the atmosphere
Which is an effect of global warming?
A. changing seasons every year
B. rising sea level over a period of time
C. increasing greenhouse gas concentration in air
D. increasing carbon dioxide in the atmosphere
B. rising sea level over a period of time
Which form of energy can be connected closely to climate change?
A. coal
B. solar
C. hydroelectric
D. wind
A. coal
Which choice would have the smallest impact on climate change when purchasing apples at the store?
A. buying apples in large quantities to reduce trips to the store
B. buying apples that are locally grown
C. buying apples that have no packaging
D. buying apples from farms that plan to use organic practices
B. buying apples that are locally grown
Which orders the activities from the greatest to least impact to reduce consumption of fossil fuels?
A. walk to work, carpool to work, drive alone to work
B. carpool to work, walk to work, drive an electric car to work
C. drive alone to work, drive an electric car to work, carpool to work
D. drive an electric car to work, walk to work, carpool to work
D. drive an electric car to work, walk to work, carpool to work
The major cause of the greenhouse effect is carbon dioxide (CO2) in the atmosphere. To get the answer to this question, you can start by understanding what the greenhouse effect is. The greenhouse effect is a natural process where certain gases in the Earth's atmosphere trap heat from the sun, leading to the warming of the planet.
Carbon dioxide is one of the greenhouse gases that contributes to the greenhouse effect. It is released through several human activities such as burning fossil fuels like coal, oil, and natural gas for energy. These activities release significant amounts of CO2 into the atmosphere, which accumulates over time.
Choices A and C, which mention carbon dioxide and soot in the water, are incorrect. While carbon dioxide can dissolve in water, it does not significantly contribute to the greenhouse effect in that form. Similarly, soot from coal plants also does not play a major role in the greenhouse effect when it is in the water (Choice C). Soot, however, can contribute to air pollution and have other negative impacts on the environment.
Therefore, the correct answer is Choice B: carbon dioxide in the atmosphere.