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.
Nah nah nah nah nah nah nah
I say the same thing. The sun contains 99.8 of the mass in our solar system
<span>Deserts landscapes are jagged and rocky due to high erosion rates and chemical weathering. The chemcial weathering changes the physical character of the rocks which is the cause of it being jagged and rocky.
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-Hope this helps.
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Answer: C. Y and Z
Explanation:
First, it is necessary to understand the concept of escape velocity.
The <u>escape velocity</u> is the <em>minimum speed with which any object needs to be launched to move indefinitely away from a more massive body or system to which only the gravitational force links it.
</em>
In this sense, each planet and body of the solar system has an escape velocity with which if an object is launched, it can escape the gravitational attraction of that planet. In the case of Earth it is approximately 
.
Hence, from the given options, the objects whose speeds are closer to 
are Y and Z.
