Is neon an atom, element, molecule, or a compound?

Which of the following examples can cause gene flow between populations? a.an increase in predators to a population of zebra b.a volcanic eruption that kills half of a population of mice c.bird droppings that contain seeds from a different location d.a person that sprays a toxin on a group of mosquitoes

9. wind power creates pollution. water air soil noise

What causes temperature extremes in the desert