Contraction is the answer
Answer:
B
Explanation:
Short answer: Lots of ash means lots heat lots of heat mean it going to get hot on earth
Long answer: Earth is going to have lets say one hundred volcanic eruptions so that means that there is going to be a lot of two things: Ash and heat. if there is a lot of heat and a lot of ash then the ash will cover the planets atmosphere. If the planets atmosphere is blocked the air inside the atmosphere will heat up and increase global warming.
Answer:
Relaxation of the dartos muscle.
Explanation:
Testes are present in scrotum outside the pelvic cavity to maintain the temperature about 2-3 degrees Celsius below the body temperature as required for sperm production. Dartos muscle is the layer of smooth muscle located in the superficial fascia. The contraction of dartos muscle serves to make the skin of the scrotum wrinkled and tight.
During hot weather, the dartos muscle relaxes and makes the surface of scrotum less wrinkled to increase the loss of the heat from its surface. The increased heat loss from the surface of scrotum due to relaxed dartos muscles keeps the testes protected from heat.