Which atmospheric later is where earths northern and southern lights occur

thermosphere

The aurora (Northern Lights and Southern Lights) only occur in the Thermosphere

A Thermosphere is a layer of the earths atmosphere and the thermospere

is above the mesosphere and below the exosphere .

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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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

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