What forms when one oceanic plate is forced beneath another plate is C. a subduction zone.
The name itself can explain it all - the prefix sub- in Latin means 'under,' and given that beneath and under mean the same, subduction zone is the answer you should pick. The other options do not show such a relationship which is why they are wrong.
False. The number of trees is more than the number of trees cut down.
I believe the answer is true. Humans have a digestive track, which removes unwanted matter from the body.
Genotype frequency: RR is dominant, Rr is heterozygous and rr is recessive.
R^2+2Rr+r^2 = 1
R = 0.85
R^2= 0.85*0.85 = 0.7225