Answer:
i think its a computer because copmuter is a multiy task machine that can solve our many problem
Explanation:
there alot of discoveries of science thst can solve our problem
D because kg is mass and cubic cm is volume which Density = Mass / Volume
Fossil fuels are found
B. Below Ground
Homeostasis is maintained by the respiratory system in two ways: gas exchange and regulation of blood pH. Gas exchange is performed by the lungs by eliminating carbon dioxide, a waste product given off by cellular respiration.