Where does the water in streams and rivers originate?
a. precipitation
b. runoff
c. ice and snowpacks
d. all of the above

d. all of the above

Explanation:

Rivers are formed by abundant amounts of water going down uneven terrain.

They can originate from any of the forms detailed in the options. The abundant precipitations or unmelting of snowy peaks can concentrate large masses of water that can then form rivers or runoffs.  

Runoffs are formed by the accumulation of water on a land that is saturated and can not absorb more water.

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homeostasis is the tendency towards a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes. and this is how it applies to the integumentary system. back to top. skin functions in homeostasis include protection, regulation of body temperature, sensory reception, water balance, synthesis of vitamins and hormones, and absorption of materials. when body temperature falls, the sweat glands constrict and sweat production decreases.