Question 1: Chernozem means A. rich soil
B. black forest
C. river complex
D. mountain range

Question 2: Which river serves as the border between Russia and China?

A. Volga
B. Ob
C. Danube
D. Amur

The pacific islands that lie along tectonic plates may have volcanic activity are uninhabited may not have agricultural economies are located in the tasman sea

What is the hottest planet in the solar system?

Altocumulus, altostratus, cirrocumuls, cirrostratus, cirrus, cumulonimbus, cumulus, nimbostratus, stratocumulus, stratus 8.) clouds with tallest vertical development 9.) low altitude clouds in solid layers that produce rain 10.) high altitude thin flat layers of clouds 11.) rain clouds that form under stable atmospheric conditions 12.) middle altitude clouds with globular appearance