Answer any one, b is done already

a. fossil fuels are fromed from decayed plants and animals that have been converted into coal, oil, natural gas, etc., by exposure to heat and pressure from the earth's crust for over millions of years.

Explanation:

D) The effect  is that they release carbon dioxide and other greenhouse gases, which because of that it releases trap heat in our atmosphere

Explanation:

within 30 of the equator hope this

the unequal cytoplasmic division that  results  in  one egg  and three polar bodies ensures that a fertilized  egg has  ample nutrients  forits journey  to  the uterus.