Answer:
A. The asthenosphere is relatively soft compared to the rigid lithosphere.
B. The lithosphere "floats" on the asthenosphere.
D. The asthenosphere underlies the lithosphere.
Explanation:
when we mechanically classify the structure of the earth, our blue planet is divided into 5 main spheres which are:
- Lithosphere
- Asthenosphere
- Mesosphere
- Outer core
- Inner core
Each of these concentric layers have different mechanical properties.
The lithosphere is the outermost layer and it is made up of the crust coupled with upper part of the mantle. This mechanical layer of the earth is made up of rigid rocks in solid state. The whole of lithospheric mass sits and rides on the ductile and weak asthenosphere. The asthenosphere is relatively plastic in nature.
Answer:
Explanation:
Water scarcity already affects every continent. Around 1.2 billion people, or almost one-fifth of the world's population, live in areas of physical scarcity, and 500 million people are approaching this situation. Another 1.6 billion people, or almost one quarter of the world's population, face economic water shortage (where countries lack the necessary infrastructure to take water from rivers and aquifers).
Water scarcity is among the main problems to be faced by many societies and the World in the XXIst century. Water use has been growing at more than twice the rate of population increase in the last century, and, although there is no global water scarcity as such, an increasing number of regions are chronically short of water.
Water scarcity is both a natural and a human-made phenomenon. There is enough freshwater on the planet for seven billion people but it is distributed unevenly and too much of it is wasted, polluted and unsustainably managed.
Answer:
the waves can erode the rocks over time
Explanation:
