How deep below Earth's surface do rocks melt? O A. 50 m
OB. 500 km
O C. 50 km
O D. 1000 km

One of the methods used to reduce energy use is: a. energy efficiency c. energy conservation b. energy reservation d. energy holding select the best answer from the choices provided a b c d i know the answer is not option a

Which best describes meiosis? a. it produces cells that are identical to the original cell b. it is responsible for the replacement of damaged skin cells c. it is responsible for growth of the organism d. it produces male and female sex cells

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell