4. A person who exercises heavily loses a great deal of water as sweat. To maintain homeostasis, the body must keep the concentration of water in the blood from
dropping too far.
- Describe two ways the body can raise or maintain the concentration of water in the
blood.

youre right there are

i believe the answer would be b. hope it : )

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.