What are the physical characteristics of oases?

What two advantages do the coastal countries of west africa have over the sahel countriesfertile soil and mineral resources temperatures and terrain human resources and natural resources weather patterns and location

The force of gravitational attraction between the sun and venus could be increased by reduseing which of the followinga. the distance between the sun and venus b. the period of rotation of the sunc. the mass of the sun and venusd the speed of the orbit of venus

When a rock is mechanically weathered, the surface area of the rock is increased, which allows a greater amount of chemical weathering to occur. the surface area of the rock is increased, which hinders chemical weathering. the volume of the rock is decreased, which hinders chemical weathering. the volume of the rock is increased, which allows a greater amount of chemical weathering to occur. the surface area of the rock is decreased, which allows a greater amount of chemical weathering to occur