Please look at attached photo. My last ten points cause of a troll.

Select all the true statements about the cosmic microwave background radiation

The eruption of a nearby volcano causes a prairie ecosystem to receive a lot less sunlight.which of these is the most likely effect on the ecosystem? a-an increase in biodiversity. b-an increase in immigration to the area. c-a decrease in available water. d-a decrease in plant growth.

How does the nervous system affect the excretory system?