Answer:
H2O and O2
Explanation:
water and oxygen is required for photosynthesis
Answer:
Y most likely represents springs.
Answer:
B
(The result of DNA replication is two DNA molecules consisting of one new and one old chain of nucleotides. This is why DNA replication is described as semi-conservative, half of the chain is part of the original DNA molecule, half is brand new.)
A lunar eclipse can last for a couple of hours and some minutes