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.

The answer is letter a. Scientists generally agree that global warming is taking place. The melting of the polar ice caps were the first signs that global warming is now taking place.  Other signs can be the change of patterns in the weather as well the high amount of heat during warm temperatures.

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

Explanation:

a. Scientists generally agree that global warming is taking place. Due to the study of the  earths atmosphere over time, scientist ave come to terms wit the fact tat global warming actually exists

global warming is the reduction in the ozone layer of the earth's atmosphere due to human activities . Human activities tat could lead to global warming are deforestation: te fallin down of trees . tree/plant inhale carbon iv oxide . when there is a release of carbon gases into the surrounding , there won't be trees to sap up this unsafe gases from humans.

Gases from burning of refuse and industrial layout: Gaseous effluents from industrial layout can contribute to global warming. carbon mono-oxide from the exhaust pipes of vehicles are injurious to mother nature.

When there is global warming, it will affect climatic changes, flooding. Due to the reduction in the ozone layer, radiation from the sun will get to us quickly , and can cause skin cancer.

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.