What best describes a limitation of wind energy as a renewable energy source

In "the man in the water," what was the remarkable occurrence that rosenblatt reported?

Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?

10. in which phase will crossing-over occur? a. mitosis b. metaphase ii c. prophase i d. meiosis ii