Auroras are the lights that appear at earths northern and southern poles. what is the main cause of an aurora

Which factors add to the greenhouse effect and are caused by human activities?

All of the following are reasons why deserts extremely susceptible to wind erosion except a. they lack major root systems b. they contain thin, dry soil c. they have very few plants and trees d. they are extremely hot and lack water

Which of the following natural resources held india fuel its nuclear power plants? uranium, coal, timber, natural gas