Soil fertility is best described as being dependent upon
a.
the balance between organic matter and mineral nutrients
b.
soil color and the local climate
c.
topography and the local climate
d.
soil texture

Write a paragraph at least 10 sentences explaining how rocks are used today in society

Effect of rotenone and antimycin a on electron transfer rotenone, a toxic natural product from plants, strongly inhibits nadh dehydrogenase of insect and fish mitochondria. antimycin a, a toxic antibiotic, strongly inhibits the oxidation of ubiquinol. (a) explain why rotenone ingestion is lethal to some insect and fish species. (b) explain why antimycin a is a poison. (c) given that rotenone and antimycin a are equally effective in blocking their respective sites in the electron-transfer chain, which would be a more potent poison? explain.

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?