Less weathering occurs in deserts because __________.
A: there is little light
B: there is a lack of moisture
C: there are too few organic acids from plants
D: both a lack of moisture and a scarcity of organic acids
A: there is little light
B: there is a lack of moisture
C: there are too few organic acids from plants
D: both a lack of moisture and a scarcity of organic acids
举一反三
- Plants （ ） carbon dioxide from the air and moisture from the soil.
- _____是典型微生物发酵产物。 A: Antibiotics B: Biosurfactants C: Organic Acids D: All the three choices
- Why do cold coastal currents create deserts A: They prevent the accumulation of rain clouds. B: They make it too cold for plants to grow. C: They cause the rain-shadow effect to occur. D: They keep moisture contained on a continent’s western edge.
- The<br/>main way to generate ATP in body is ( ) A: Creatine<br/>phosphorylation B: oxidative<br/>phosphorylation C: Phosphorylation<br/>of sugar D: substrate<br/>level Phosphorylation E: Decarboxylation<br/>of organic acids
- Because it was too dark at night, I could see ______ people on the street. A: few B: a few C: C. little D: a little