Which of these is changed by the Milankovitch cycles?

A. The duration of seasons on earth

B. The length of a year on earth

C. The amount of solar energy that reaches earth

D. The reflectivity of earth

C

Explanation:

because it causes by the sun and moon on the solid earth ;both contribute roughly equally to this effect

stress fractures occur largely in the feet and legs and are common in sports that require repetitive impact, primarily running/jumping sports such as gymnastics or track and field.

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u