It all depends.
During an eruption there is a mixture of gases and different particles that enter the atmosphere. These include ash and sulphur dioxide. The substances that they cause help to reflect the sunlight away from the earth.
Other types of gases and mixtures such as C02 can cause warming. This can add to the greenhouse effect.
That statement is true
In term of soil richness near the water flow, the area around congo river only second to the amazon.
The area was filled with rich volcanic soils which make the crops around congo River's area extremely productive
hope this helps
They are the descendants of Persian Jews.
From the Persian Empire aka Iran.
C is not a challenge faced by aid organizations