What do these items have in common?

trees, contouring, terraces

rice farming
architecture
erosion control
paper manufacturing

erosion control

Explanation:

Erosion is caused by a physical agent such as water, air or other. This results in the removal of the top layer of the soil.

Trees, terraces, contouring will control erosion. These will reduce the soil erosion by holding the soil.

c

explanation:

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

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