Plz the periodic change between night and day is caused by

a the moons rotation

b earth revolution aruond the sun

c the moons revolution around earth

d earths rotation

Ill give brainiestif one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated? if each of the neutrons produced in the first fission event then initiates a fission event that produces one neutron in the products, how many new reactions can now be initiated by each neutron? how many neutrons in total were produced by the two fission events described?

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.

How do dying stars contribute to the formation of planets