Environmental Science Unknowns Flashcards
1
Q
What are high yield varieties?
A
- crops that produce more food
- done via processes of science and our understandings of science (artificial selection)
- rich wheat corn
- use lots of irrigation, fertilizers, pesticides
2
Q
What was responsible for the increased food production?
A
- fertilizers (which contributed to the high yield varieties)
- high yield varieties drove the green revolution
3
Q
What are the ways to prevent salinization?
A
- plant trees that absorb water faster than plants
- plant salt resistant plants
- plant crops that require less water
- irrigate more efficiently
- place better draining systems
4
Q
What causes salinization?
A
- irresponsible irrigation (water logging and drowning)
5
Q
Why are pesticides useful?
A
Kill pests, reduce blemishes on produce, reduce labour costs
6
Q
What are the 6 principles in attaining food sovereignty for nations
A
- Promote healthy cultural appropriate food
- recognize food producers rights to work and live with dignity
- recognize solutions are place based
- promote local business over exports
- promote sustainable harvesting and farming methods
- promote local control of land, seed, and other needed agricultural resources
7
Q
What is soil to water to plants?
A
- soil serves as a reservoir for the moisture plants require
8
Q
What are pesticides?
A
