Loading Web-Font TeX/Main/Regular
题目列表
| 题目内容 |
|
|
Meteorologists often make no strict distinction between sand and dust storms, events during which winds raise minute land-based particles into the atmosphere, since every storm contains _________________ particles.
|
|
The constant movement of Earth's outer shell produces a significant amount of geological ______________: volcanoes that result trom the interactions of tectonic plates, for example, differ in size, shape, chemistry, and eruption style.
|
|
While both western and eastern Australian deserts occasionally experience drenching rains, the western deserts are covered by sand sheets so __________ that, even during huge rainfalls, very little water runs off and surface rivers rarely form.
|
|
In some respects, all geological evidence is __________: we can't, for example, measure ancient aridity, but large-scale Aeolian cross-bedding, sand ripples, evaporites, and rounded sand grains are the results of it, and together, suggest the presence of a desert.
|
MathJax Main ^ ℏ ∣
