The correct answer is: e. the stage and the objective lens.
Coarse Focus is the rough focus knob on the microscope used for the movement the of objective lenses toward or away from the specimen (located on the slice that is placed on the stage). On the other hand, fine focus is used to focus on various parts of the specimen.. Generally, coarse focus is used first to get close then moves to the fine focus knob for fine tuning.
What do you mean by "What is a shooting star, a comet or a meteor burning in our Earth’s Atmosphere?"
edit: ohhhhh you are asking what a shooting star is...
its particles of comets or astoroids/metor enter the atmosphere at very high speeds and burn up
A) because if you have more different types of bugs you'll need a variety of pesticide.
