From what is known about spring tides and neap tides, you can conclude that

a). the sun’s gravity exerts the most power when the moon is on the opposite side of the earth from the sun.
b). the height of high tides varies with the phases of the moon.
c). spring tides and neap tides affect the phases of the moon.
d). the moon revolves around the earth every 14 days.

B. the height of high tides varies with the phases of the moon. I say that the is the answer because during full moon and new moon there is spring tide and Neap tides occur during the two Quarter moons.

Hope this helps :)

poison levels are being represented and it show how much poison the producer has and how much the consumer has   and damage the organisms in it, particularly in the predators at the end of the chain. this is because accumulating compounds cannot be excreted.

it restores trees to areas where they once grew.