Which of the following statements about current theories on global warming is true? a. scientists generally agree that global warming is taking place. b. some scientists think that we should accelerate global warming. c. the scientific community disagrees about whether we should take action about global warming. d. cutting down trees and burning fossil fuels does not lead to global warming.

A. Scientists generally agree that global warming is taking place.

Scientists agree that the global rise in temperature is taking place. (A)  

Further Explanation:

Global warming refers to the long term increase in the average temperature of the earth’s climate system. It is the vital aspect of the climate change and has been observed by direct temperature measurements as well as by the measurements of different effects of the warming. The climate change and global warming are often used interchangeably.  

Global warming is mainly the human caused situation which causes an increase in the global surface temperature whereas climate change involves both global warming as well as its effects like changes in the precipitation. It was concluded by IPCC or intergovernmental panel on climate change that the human influence has been the main cause of the observed global warming since mid-20th century. The major human influence has been the production of greenhouse gases like methane, carbon dioxide, and nitrous oxide.  

The major effects of the global warming involves increase in the levels of sea, more frequent extreme weather events like expansion of deserts and heat waves. The ocean acidification is mainly caused due to the greenhouse gas emissions and it has been accepted by the scientists.  

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Answer details:

Grade: Middle School

Subject: Biology

Chapter: Environment biology

Keywords:

Greenhouse gases, carbon dioxide, nitrous oxide, earth, temperature, rising sea levels, scientists, heat waves.

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