Which SI unit is most appropriate for measuring density

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

What is the cause hearing loss in human being

Long-period comets come from the oort cloud particles in earth’s atmosphere material from the asteroid belt the kuiper belt