Which elements is not one of the three most common ones in a plant?
A: Carbon
B: Hydrogen
C: Oxygen
D: Sulfur
A: Carbon
B: Hydrogen
C: Oxygen
D: Sulfur
D
举一反三
- 中国大学MOOC: Which elements is not one of the three most common ones in a plant?
- Of the more common elements(元素) are hydrogen, oxygen, carbon, iron, copper, etc.
- Which is the most abundant atom (% body weight) in the human body? ( ) A: Hydrogen B: Oxygen C: Carbon D: Nitrogen
- （ ）is the most abundant chemical element in plants and animals. A: Oxygen B: Carbon C: Hydrogen D: Nitrogen
- The synonym of CO2 is .（ ）。 A: hydrogen B: carbon monoxide C: carbon dioxide D: oxygen
内容
- 0
( ) is taken in by plants to make food. A: nitrogen B: hydrogen C: oxygen D: carbon dioxide
- 1
The gas with maximum percentage in the atmosphere is ( ). A: nitrogen B: hydrogen C: oxygen D: carbon dioxide
- 2
"Greenhouse gases" in Para. 2 refer to ________________. A: oxygen B: hydrogen C: carbon dioxide D: air
- 3
The most significant constituents of coal are . A: hydrocarbons B: sulfur C: oxygen D: nitrogen
- 4
Scientists figured out that human bodies are basically made of（） A: hydrogen, carbon, nitrogen, and oxygen atoms B: water vapor, ammonia, carbon dioxide, methane and hydrogen C: biomolecules and water D: evolutionary molecules