How does volcanic ash in earth’s atmosphere affect solar radiation?

Compare and contrast nutrient limitation in soil vs. nutrient limitation in aquatic ecosystems

What re the two main phrases of the cell cycle.

Plz ! for many generations farmers in north america have been choosing to cross corn plants with large ears of corn each year this results in the new generation of plants also growing large ears of corn. what is the technique called? a. selective breeding. b. natural selection. c. mitosis. d. asexual budding.