What is an effect of using chemical fertilizers to replace minerals in the soil? A
breaks down toxic substances and harmful excess salts
B
causes excess nitrogen runoff that upsets the nitrogen cycle
с
improves the structure of the soil allowing it to retain nutrients
D
many trace elements are replaced in the soil to help retain water

What does it mean if an area has high biodiversity? select one: a. different organisms live in the world b. lots of different organisms live an ecosystem c. lots of the exact same organisms live in an ecosystem

Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%

Adescription of a type of bio biotechnology (genetic engineering, cloning, or artificial section) one benefit or one risk for the individual (based on whether you are for or against it) one benefit or one risk for society (based on whether you are for or against it) one benefit or one risk for the environment (based on whether you are for or against it)