part 5 Flashcards
1
Q
where is oil formed from
A
marine phytoplankton
2
Q
where is coal formed from
A
terrestrial swamp vegetation
3
Q
what country consumes and produces the most oil
A
USA
4
Q
what country produces the most natural gas
A
USA
5
Q
3 things that limit growth of plant on land
A
- Competition for sunlight
- Water
- Nutrients or fertilizer
6
Q
what nutrients are important for plant growth on land
A
N, P, K
7
Q
what nutrients are important for plant growth in ocean
A
N, P Si
8
Q
what plant has most of its biomass underground
A
Prairie - adapted for water depletion
9
Q
The first green revolution in Europe characteristics
A
- Guano ->1820s to 1840’s
- Chilean Nitrates 1830’s to 1930
- NEW CROPS! Potato tomato Maize – 17th and 18th century
*brought by South America
10
Q
what 4 things caused the Second Green Revolution
A
- Industrial fertilizer production
- Irrigation on a mass scale. Center pivot irrigation
- Plant breeding
- Chemicals: pesticide, herbicide
*After WWII, 1945
11
Q
3 results of plant breeding
A
1 More kernels per cob
2 More cobs per plant
3 Plants that can withstand high density
12
Q
whats water loss by plants during photosynthesis called
A
Evapo-transpiration
