Agriculture

Question 1

what was the green revolution?

Answer 1

introduced new technology, crop varieties, and farming practices to the developing world

Question 2

when was the green revolution?

Answer 2

1940

Question 3

what did the green revolution help with?

Answer 3

it helped increase yield and reduce starvation, but has also degraded soil, water supplies, and pollinators

Question 4

____ _____ maintains healthy soil, clean water, and other vital resources

Answer 4

sustainable agriculture

Question 5

a system consisting of disintegrated rock, organic matter, water, gases, nutrients, and microorganisms

Answer 5

soil

Question 6

what are sustainable approaches to maximize irrigation efficiency?

Answer 6

better match crops and climate, and using less water for irrigation plants because plants only use 40% of irrigation on average

Question 7

substances that contain essential nutrients for plant growth

Answer 7

fertilizers

Question 8

____ ____ are mined or synthetically manufactured

Answer 8

inorganic fertilizers

Question 9

made of the remains or wastes from organism, including manure, crop residue, charcoal, fresh vegetation, and compost

Answer 9

organic fertilizers

Question 10

mixture produced when decomposers break down organic matter in a controlled environment

Answer 10

compost

Question 11

the removal of material from one place and its transport to another by wind or water

Answer 11

erosion

Question 12

when eroded material is left at a new location

Answer 12

deposition

Question 13

what 3 ways do humans make land more vulnerable to erosion?

Answer 13

1. over cultivating fields through poor planning or excessive plowing
2. grazing rangeland with more livestock than it can support
3. clearing forests on steep slopes

Question 14

drylands are prone to _____, a degradation where more than 10% of productivity Is lost

Answer 14

desertification

Question 15

any plant that competes with crops

Answer 15

weeds