Ground water sapping and valley formation on mars
Answer:
deforestation, development, and increased population.
Explanation:
The causes of environmental problems in Sub-Saharan Africa are deforestation, development, and increased population. As the country is aiming for development, its environmental status is impaired.
Acid rain
caused by emissions of sulfur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids.
The Arctic Ocean is the shallowest ocean in the world.