Answer:
true
Explanation:
the condenser lens is the size of the electron beam and the main objective lens is to focus the beam on the sample
so that scanning electron microscope have two projector lens
sorry if its not correct
The answer is flow of energy
Earth would basically look like the Moon; minus the craters, of course. This is because with no atmosphere to hold all of the Oxygen near the surface, all life would die off fairly quickly.
Because many animals eat plants to survive, so if you cut off the animals food source you will kill them because they have nothing to eat, which leads to a chain reaction. If bunnies eat grass and foxes eat bunnies the everything goes extinct, because the grass dies and the bunny doesnt have anything to eat so it dies, and then the fox was supposed to eat that bunny but now its dead so now the fox will die too
