Ok so theirs this thing called asking your teacher for help especially when it’s such an easy question
The rock will only displace the same amount of water that the rock's volume is.
1mL = 1cm^3
400mL = 400cm^3.
First comes fertilization, when two gametes combine to form a zygote.
The reduced the change of that matter
I believe those are both non-contact forces bc it's not something physical