The correct answer is A. The average surface temperature of Earth has increased more than 1 degree Fahrenheit since 1900.
The Earth’s climate has changed throughout history. Natural processes such as changes in the Earth’s orbit around the sun and volcanic eruptions have caused the climate to change in the past. However, the current warming trend is extremely rapid and is caused by human activities, such as the burning of fossil fuels.
The burning of fossil fuels releases greenhouse gases into the atmosphere. Greenhouse gases trap heat in the atmosphere, which causes the Earth’s temperature to rise. The Earth’s temperature has increased by about 1 degree Fahrenheit since 1900. This may not seem like much, but it is enough to have a significant impact on the planet.
The warming of the Earth is causing a number of changes, including:
- Rising sea levels: As the Earth’s temperature rises, the ice caps and glaciers are melting. This is causing sea levels to rise.
- More extreme weather events: The warming of the Earth is causing more extreme weather events, such as hurricanes, floods, and droughts.
- Changes in plant and animal life: The warming of the Earth is causing changes in plant and animal life. Some species are moving to new areas in order to find cooler temperatures. Others are dying off.
The warming of the Earth is a serious problem that needs to be addressed. We need to reduce our emissions of greenhouse gases in order to slow the rate of warming. We also need to adapt to the changes that are already happening.
The other options are incorrect because they do not accurately reflect the current state of the Earth’s climate. Option B, “is increasing,” is incorrect because the Earth’s temperature has already increased by more than 1 degree Fahrenheit. Option C, “had increased,” is incorrect because the Earth’s temperature is still increasing. Option D, “is going to increase,” is incorrect because the Earth’s temperature is already increasing. Option E, “has been increasing,” is incorrect because the Earth’s temperature has not been increasing at a constant rate.