List 2 type of particles in the air and example how they move

Will mark brainliest if correct/available! which of the following statements is true? all plants need flowers to sexually reproduce. sexually reproduced offspring are identical to their parents. fertilization always occurs inside the female's body. a body cell has twice the number of chromosomes as an egg cell.

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

Several billion years ago which gas was the least prevailant in the atmosphere