Satellites orbit earth in the a) mesosphere b) troposphere c) stratosphere d) thermosphere

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Satellites orbit Earth in the thermosphere.

The thermosphere is the top layer of the atmosphere. In the thermosphere, the air is extremely thin because there aren't many molecules.

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.