Sinkholes are common where the rock below the land surface is limestone, carbonate rock, salt beds, or rocks that can naturally be dissolved by groundwater circulating through them. As the rock dissolves, spaces and caverns develop underground.
Sinkholes are formed when the land surface above collapses or sinks into the cavities or when surface material is carried downward into the voids. Drought, along with resulting high groundwater withdrawals, can make conditions favorable for sinkholes to form.
Answer:
E. All of these objects rise in the east and set in the west.
Explanation:
The Earth is spinning on its axis towards the east.
For this reason all of the object they are outside the earth such as Galaxies, sun, stars and the moon, Will Rise in the East and set in the West.
The earth spinning on its axis because of the gravitational pull that the sun exercise on it, and it's the reason why we have a day and a night.
The earth,beside moving on its axis, is moving in relationship to the sun, and this Orbit last 365 days (a year), and there is also a change in the inclination of the axis which is called a precessional cycle.
A very important feature in partly in the Sub-Sahara of Africa is the Great Rift Valley which stretches for about 6000km from Syria to Mozambique is a block faulted valley, 30 to 60 miles wide which represents a rift in the African plate of plate tectonics, similar to the ones under the ocean like the mid-Atlantic ridge. It has fertile soil in it, partly from volcanoes like Mt Killimanjaro, and also many large lakes like Lake Tanganyika, It provided a rich environment due to the soil and the lakes for example, for the Bantu people in the past, many of which had their kingdoms here. Ancient human remains have been found in it's soil by Richard Leakey.
Answer:
i would believe it would be mountains or canyons. cuz either the ground would be pushed up or it would cave in like the grand canyon.
Explanation:
