Answer:
Deforestation and agricultural pollution
Explanation:
Rising population densities and the consequent demand for arable land gave rise to serious soil erosion, deforestation due to the need for firewood, and depletion of soil nutrients.
yes it is right according to my research
Answer:
Explanation: A dune is a mound of sand formed by the wind, usually along the beach or in a desert. Dunes form when wind blows sand into a sheltered area behind an obstacle. Dunes grow as grains of sand accumulate. Every dune has a windward side and a slipface.
When the price of oil drops this usually means that OPEC or a major state within OPEC like Saudi Arabia, or Venezuela has increased the supply of oil leading to a drop in price. This is the current policy of the Saudi Government which has led to a drastic decline in oil prices over the last 3 to 4 months.
Africa and South America.
