Which set of terms describes a realistic cause-effect relationship between solar weather and Earth's magnetosphere? Select the two correct answers. A. coronal mass ejection -- geomagnetic storm
B. solar wind -- interplanetary magnetic field
C. geomagnetic storm -- aurora
D. radiation belt -- aurora

A & B

Explanation:

A - When a CME hits the Earth's atmosphere, it results in a (temporary) disturbance of the Earth's magnetosphere - a geomagnetic storm.

B - In basics, solar wind drags the magnetic field lines of coronal holes so far out that it surrounds all of the planets in the solar system, forming an IMF.

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.