Which of the following terms describes days when the sun's rays directly hit the tropic of cancer and the tropic of capricorn?

a. midnight sun
b. revolution
c. solstice
d. equinox

c. Solstice describes days when sun's rays directly hit Tropic of Cancer and Tropic of Capricorn.

The solstices occur due to the declination of the Earth's orbital movement around the sun. During this declination, the axial tilt is 23.5°. Furthermore, solstice's occurrence is during time the sun's direction is overhead the moon.

In Northern hemisphere, the declination is towards Tropic of Cancer with the axial tilt of 23.5°N. It occurs on June 20 & 22 while in the south the normal period of occurrence is between December 20 and December 23. In the south, the solar declination hits Tropic of Capricorn at 23.5°S.

the only plants classified as non-seed producers are b) moss, fern, and liverwort!

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