Much of the earth's photosynthesis occurs in the oceans. The rate of primary production depends on light intensity, measured as the flux of photons (that is, number of photons per unit area per unit time). For monochromatic light, intensity attenuates with water depth according to Beer's Law, which states that I(x) = e−kx, where x is water depth. A simple model for the relationship between rate of photosynthesis and light intensity is P(I) = aI, where a is a constant and P is measured as a mass of carbon fixed per volume of water, per unit time.† Calculate [infinity] P(I(x)) dx 0 .

Relationship between rate of photosynthesis and light intensity is,

P (I) = aI

Explanation:

See attached image

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000