Answer:
C
Explanation:
Causes and increase in green house gasses such as CO2, N, and similar harmful gases.
Every offspring does not look alike they change with the generations
I think it 700 million years because I took the same question and that’s what I put.
To easy remember it,
Phloem, has the (f) sound, so it carries food and nutrition like sugars all around the plant, up and down movwment.
while Xylem carries water and minerals, from down the soil up to the plant, only up movement.