C. domestic manufacturing was discouraged
Explanation:
In our solar system, gas giants are much bigger than terrestrial planets, and they have thick atmospheres full of hydrogen and helium. On Jupiter and Saturn, hydrogen and helium make up most of the planet, while on Uranus and Neptune, the elements make up just the outer envelope.
hope that helps you!
I would say cover the soil. In order for it to be secure and/or washing away, it has to be secured with a cover. You cannot put the soil beneath the ground because it wouldn’t get the nutrients it needs. So the answer would be number one.
