Pollution in the___ will have the greatest efrect on the human health​ a troposphere
b stratosphere
c mesosphere
d thermosphere

The seed coat's most important function is to provide a) a nonstressful environment for the megasporangium. b) the means for dispersal. c) dormancy. d) a nutrient supply for the embryo. e) desiccation resistance.

Name the organs of humanelemintary canal.

What is one energy transformation that is taking place in the photo? radiant energy to thermal energy thermal energy to nuclear energy chemical energy to thermal energy radiant energy to chemical energy