There might be no food or places to live!
Answer:
Asuming basic organic chemistry: Hydrocarbons
Explanation:
A hydrocarbon is an organic compound consisting entirely of hydrogen and carbon.
Johannes Kepler was the one who elucidated the 3 laws of planetary orbits, the chief one being the elliptical orbits of the planets around the sun with the sun at a focal point at one end of the orbits. This was derived especially from careful observations by Tycho Brahe of the heavens and based on his model of the orbits so was scientifically based.
Answer:
The first one
When pulling a tree from the ground
Natural ladybugs.
You can indeed use ladybugs in a pest control, but that depends on the pest. Since in the question, you don't specify what the pest is, the answer is natural ladybugs.
If the animal was something that ladybugs eat, like aphids for example, than ladybugs could be used as a pest control insect.
Hope it helped,
BioTeacher101