Integrating land and water management to protect soils from erosion, salinization, and other forms of degradation.
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.
An air mass if a distinct body that creates a homogeneous mixture of temperature, humidity, and stability that extends through the lower half of the atmosphere.
m --> maritime (wet)
c --> continental (dry)
A --> Arctic
P --> Polar
T --> Tropical
E --> Equatorial
AA --> Antarctic
The CONTINENTAL POLAR air mass only forms in the Northern Hemisphere. An area covered by this air mass (cP) in winter experiences cold, stable air, clear skies, high pressure, and antcyclonic wind flow.
The MARITIME POLAR air mass in the Northern Hemisphere sits over the Northern Oceans and are cool, moist, unstable, and prevail throughout the year.
There are two MARITIME TROPICAL air masses --> the mT Gulf/Atlantic + the mT Pacific
Hope that helps!
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