Any method of measuring the age of an object or event in years, such as using the atomic half-life

1.extinct
2.relative dating
3.fossil
4.geologic time scale
5.absolute dating
6.plate techtonics

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.

i hope this : )

your answer would be a, maximum exploitation of resources.