Me pl i cant decide asap m

which of the following is not a feed storage device?
a. metal bin c. corral
b. upright silo d. trench silo

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer

How do plants obtain more sunlight a.) they lean towards the light b.)they grow straight up c.) they only live in sunny areas, like the tropics d.) they stay low to the ground

Is genetic diversity the same as genetic variation?