Answer:
The Earth is made up of many rocky layers deep down into the crust.
The crust is the solid outer layer, and below it lies a layer of extremely hot, almost solid rock called the mantle. The core is the exact center of the earth surface that is beneath the mantle.
Explanation:
Answer:
C. time for weathering of rock and development of the soil horizons
Explanation:
The primary succession is the initial colonization of a previously existing ecosystem that has been totally destroyed by some disastrous event. During this colonization, the organisms that settle in are ones that do not have any particular requirements for their survival, like the lichens and mosses. As they spread all over the area, they slowly start to influence the rocks on which they have grown, little by little weather them and providing them with organic matter. This gives rise to the first soil horizon, but it is very shallow and the soil is not well formed, so lot of time needs until the soil becomes suitable enough for the secondary succession to occur. When the secondary succession occurs it means that there's soil formed in the area, so new organisms move in, and as they do they replace the ones from the primary succession, slowly forming a new ecosystem and well balanced ecological community.
It is very hot and arid, which makes it hard to find edible food and drinkable water. There is not much vegetation.
An ecosystem with wet soil, willow trees and orchids is likely a swamp. A swamp is actually a wetland that is forested. This kind of wetland supports a huge number of animals and plants. Most of the swamps are found near big rivers and they are dependent on the tide of the rivers. I hope this helps.
