I only know one for the first one, don't be mad, please.
1. I'm pretty sure one of them is membrane
2. A cell can die through infection, poisoning, overheating, or even lack of oxygen.
3. I think it depends on how fragile the membrane of the cell is.
I'm so so so sorry if these didn't help, I'm trying my best, lol.
I can help you... what do you mean?
By determining the density of the object
Transports salt into the ocean.
C. There is a storm ?
Warm air rises and cold air drops because cold air is denser so when the warm air rises it when it collides with the cold air then comes condensation and clouds start to form and a storm can occur
