These renewable feed-stocks are most often associated with biological and plant based starting materials, including:
A: Agricultural wastes
B: Saw dust
C: Carbon dioxide
D: Coal
A: Agricultural wastes
B: Saw dust
C: Carbon dioxide
D: Coal
A,B
举一反三
- The concentration of carbon dioxide is caused by_______. A: the heat accumulated in the atmosphere B: the burning of coal C: the wide use of renewable energy D: the destruction of the tropical rain forest
- This main idea of the country A: the formation of sugar B: the role of water in a growing plant C: the functions of carbon dioxide and water D: the synthesis of water with carbon dioxide
- Burning coal, oil and natural gas are ways to reduce carbon dioxide in the atmosphere.
- The ingredient of atmosphere does NOT include ______. A: carbon dioxide B: dust particles C: water vapor D: sunlight
- ______ of agricultural practices is a recognized method of carbon sequestration as soil can act as an effective carbon sink offsetting as much as 20% of 2010 carbon dioxide emissions annually.
内容
- 0
Geothermal energy brings air emissions including( ). A: carbon dioxide B: all the options C: hydrogen sulfide D: methane
- 1
The most abundant greenhouse gas in the atmosphere is . A: nitrous oxide B: methane C: chlorofluorocarbons D: carbon dioxide
- 2
Which of the following is not a primary product from insect farms? A: Insect grease as fuel material B: Insect protein as animal feed C: Feed residue as plant fertilizer D: Waste water for agricultural irrigation
- 3
A growing plant needs water for all of the following EXCEPT ______. A: forming sugars B: sustaining woody stems C: keeping green D: producing carbon dioxide
- 4
Which of the following would most likely be considered a discipline A: jealousy B: carbon dioxide C: mathematics D: summer vacation