PLEASE HEL ME Which would most likely increase the carrying capacity for humans in a
certain region?
O A. Increased fertility rate
B. Less available fresh water
C. Less space to build houses
D. Better soil for growing food
Someone please help me I'm stuck on this

a polymer is a chainlike molecule made up of small molecular units. these small molecular units are called monomers. monomers of polymer can be joined together either naturally or synthetically.  

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

its temperature is increasing. this causes molecular vibrations to increase.