A: providing farm lands
B: conserving water sources
C: maintaining soil
D: reducing droughts and floods
举一反三
- Which one is NOT the role of Amazon rainforest in the earth ecosystem? A: providing farm lands B: conserving water sources C: maintaining soil D: reducing droughts and floods
- Which of the following places on Earth makes a bad Mars analog? A: The Arctic B: Antarctica C: Mojave Desert D: Amazon Rainforest
- Which of the following places on Earth makes a bad Mars analog? A: The Arctic B: Antarctica C: Mojave Desert D: Amazon Rainforest
- The word "lands" in the last sentence could best be replaced by A: "soil". B: "earth", C: "countries". D: "parts".
- Which of the following is an important function of financial markets? A: Providing financing B: Providing financing and liquidity C: Providing financing, providing liquidity, reducing risk, and providing information D: Providing information
内容
- 0
Which of the following compressions in the soil under loading cannot be ignored（） A: soil particles B: interparticle pore C: sealing gas D: water in the soil
- 1
Which of the following is NOT part of the hydrologic cycle? A: water moving into creeks and streams following a rainstorm B: water infiltrating into the soil and bedrock C: calcium carbonate dissolving in soil water and groundwater D: water evaporating from a lake
- 2
The atmosphere is as much a part of the earth as _______ its soil and water of its lakes, rivers and oceans. A: has B: do C: is D: are
- 3
The atmosphere is as much a part of the earth as _________________ its soil and the water of its lakes, rivers and oceans. A: is B: do C: are D: has
- 4
Water is one of the great ________ in China. A: sources B: esource C: origin D: esources