Answer:
A gas-powered lawn mower is a complex machine because for it to function it does more than one motion. For example, it has a wheel and axle system so it can move when powered. And it has a system of simple machines and other parts that are put together to accomplish the task of cutting grass.
Explanation:
Answer:
Mining
Explanation:
The other three natural ways of helping replenish the environment.
It could be dinosaurs, or a specific species... could you be more specific with what it's related to?
Answer:
Below
Explanation:
Grain germinates in the pollen.
After the pollination, Germinates grain goes off the carpel and grows.
After it is quite grew, it moves down to the ovary.
The pollen tube breaks into the ovule and bursts into the embryo sac.
I hope this helps you :)