When did the silurian period occur?

a) before the neogene era.
b) during the hadean eon.
c) during the mesozoic era.
d) after the permian era.


i know the letter d is wrong.

Acid rain is the direct result of acid released by burning fossil fuels. select the best answer from the choices provided ot o f true or false

Imagine a rocket launching from earth and travelling to the moon. in which order would the rocket pass through the layers of the atmosphere? thermosphere, mesosphere, stratosphere, troposphere troposphere, mesosphere, stratosphere, troposphere thermosphere, stratosphere, mesosphere, troposphere troposphere, stratosphere, mesosphere, thermosphere

What is the role of the phospholipid belayer in cellular transport in living cells