Which occurs at a convergent boundary where one plate moves under another plate?

a.
mid-ocean ridge

b.
rift valleys

c.
folds

d.
earthquakes

Aresearcher is studying the science of attractiveness and asks volunteer test subjects to rank what trait they find most attractive in a person what type of variable is the dependent variable in this experiment

What must happen before meiosis can begin? a. four gametes must be produced b. the four tetrads must be pulled apart c. dna doubles and produces sister chromatids d. the cell membrane pinches together

(99 points) be serious! how do farts work? how do you fart without it stinking? serious answers only