Please help me asap if you know the answers or at least 3 answers, Ive been tryna do this assignment for the past few days but my motivation wont let me, I answered some of the questions but these are the ones I need help with: What are the main functions of these parts of a compound microscope?

1. Objective lenses:

2. Slide:

3. Cover slip:

4. Stage:

5. Focusing dials:

6. Light:

7. Condenser lens:

Why does bubbling occur when vinegar mixed with baking soda

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass

If all prokaryotes on earth suddenly vanished, which of the following would be the mostlikely and most direct result? a) the number of organisms on earth would decrease by 10—20%.b) human populations would thrive in the absence of disease.c) bacteriophage numbers would dramatically increase.d) the recycling of nutrients would be greatly reduced, at least initially.e) there would be no more pathogens on earth.