What most directly causes hypertension? lack of blood flow to the heart
O a weakening of a blood vessel wall
O excessive force of blood pumping
O injury to heart muscle

Which feature do highland climates have that lower elevation areas do not?

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature

Which fact represents evidence for the big bang theory?