What is the function of the respiratory system? O to break down food
O to transport materials in the body
O to breathe
O to rid the body of waste
I will Mark brainliest if u get it right

Which of the following is the most likely result of converting forestland to urban development? a.the amount of land available for lumber production decreases. b.fewer trees are needed because cities are made mainly of concrete. c.people discover more efficient ways to grow trees. d. the price of lumber goes down.

Wind energy is plentiful in regions with vast open spaces it is a non polluting renewable resource what could be an economic factor that makes the use of this resource less feasible then non renewable resource even in such regions

9. the history of life on earth is recorded in