All plant and animal life on our planet Earth belongs to:
A. Geosphere
B. Hydrosphere
C. Biosphere
D. Atmosphere
查看答案
The physical, chemical, and biologic laws that operate today have operated throughout the geologic past. This statement describes the:
A. Uniformitarianism
B. Catastrophism
Geological events like earthquakes, volcanoes eruption belongs to:
A. Uniformitarianism
B. Catastrophism
The inner core is liquid or solid?
A. Liquid
B. Solid
The outer core is liquid or solid?
A. Liquid
B. Solid
微信支付 
支付宝支付