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select the word from the list that best fits the definition
the rise and fall of the oceans due to the gravitational pull of the moon
moon phases
solar eclipse
lunar eclipse
tides

Tides

Explanation:

The combined effect of the Moon and the sun's gravitational pull and the earth's rotation causes Ocean's rise and fall which results in Tides. This is also because of the moon's different phases. As moon is very close to earth it causes the highest rise in oceans when it is a full moon. Oceans are pulled upwards making the water bodies bump, which results in high tides in the areas where the Earth is facing the Moon.

The time when the Moon is on the front side or back side of the Earth then they work together, and we get the ""spring tides"" which are specially high and specially low. This repeats every fourteen days when both sun and moon are aligned.

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.