<span>OPEC or "Organization of Petroleum Exporting Countries", is an organization formed in 1960 by Iran, Iraq, Kuwait, Saudi Arabia and Venezuela. It's purpose is to co-ordinate petroleum policies among Member Countries, in order to secure fair prices for petroleum producers. Therefore the answer is (b)</span>
All answers are correct except the option "avoiding soil compaction"
Soil compaction makes the soil cohesively bound and make them less available for erosion.
Crop rotation holds the soil by increasing soil productivity and increasing the plantation that holds the soil
Mulching is the strategy adopted at farmland where straw blend is spread-ed over the soil mass to avoid its erosion.
Wind breaks are used at farmland to avoid or reduce soil erosion
Increasing the vegetation mean increasing the plants which through their roots hold the soil and prevent it form being carried away.
15 degrees (1 degree every 4 minutes)
A volcano erupting can destroy the forest around it. That is an example of the geosphere acting on the biosphere.
Answer:
Gabbro and basalt
Explanation:
The oceanic crust is mainly made of gabbro rocks and different types of basalt rocks.
