Don't cut down trees and use metal instead of plastic
it can be conserved in jars.
If plants and animals disappeared, there would be no food. Humans would possibly turn to cannibolism (Agh, I know I misspelled that) and that would simply drive the population down even faster. Bio-diversity is necessary because without it, we will STARVE. I think it's fairly obvious why it should be conserved. It should be conserved because it is necessary. Duh.
they are conserved in a safe place
Not really, no.
Momentum is always conserved. No matter what the collision, as long as you look at everything involved, momentum will always be conserved.
The earth would probably get hurt really bad cause it'll hurt people,animals,and plants
What does it mean to say momentum is conserved?
The plants are conserved in situ and ex situ. Seeds or plant propagules are stored under low temperature and humidity to overcome the adverse conditions of growth and planted in the field or pot whenever required.
Mass is conserved. It is a law of nature.
Conserved Domain Database was created in 2003.
Yes, this is a simple physical change and matter is always conserved in these. In fact, matter is always conserved except in nuclear reactions where the sum of matter and energy is conserved.
Acceleration is not conserved. Energy can not be created nor destroyed. Mass and momentum are both conserved through a set time.