<span>D. Overcrowding and destruction of rain forests</span>
Answer:
The Baltic Sea
Explanation:
The capital cities of Denmark, Finland, Latvia, Sweden, and Estonia are all located on the Baltic Sea.
I hope this helps!
Answer:
<u><em>River valley civilizations</em></u>
Explanation:
They were centred around various river valleys as their main source of livelihood and the flourished only due tiote river valley on which they were based. Like the harappan in Indus Valley, The yellow river (Huang He), the Mesopotamia around Tigris and Euphrates and the egyptian Nile.
