Negetive ion is made by gaining an electron
Answer: A and D
Because photosynthesis takes in carbon dioxide and releases oxygen for people to breath
Hope this helps you :)
A Punnett square would help here.
Let's say (R) is dominant red and (r) is recessive red, aka yellow.
You start with F1 hybrid flowers that are all (Rr) - these are all <em>orange</em>. So when they reproduce, both parents are (Rr). When you create a Punnett square, you'll see that the results for the F2 generation are (RR), (rr), and (Rr) twice.
(RR) is red, (rr) is yellow, and (Rr) is orange, just like the F1 generation.
Answer:
the earths layers are troposphere and stratospher while the atmospheric is the mesosphere
Explanation: