true. look at africa.
Answer:
we have two types of water scarcity.
1. Physical water scarcity
2. Economic water scarcity
Physical water scarcity prevails in those regions where surface and groundwater resources are inadequate to supply the region's water demands.
Explanation:
Answer:
physical and economic
Explanation:
Physical water scarcity occurs when and where there is not enough water to meet both human demands and those of ecosystems to function effectively. Arid regions frequently suffer from physical water scarcity. It also occurs where water seems abundant but resources are over-committed.
Economic water scarcity is caused by a lack of investment in water infrastructure or insufficient human capacity to satisfy the demand of water in areas where the population cannot afford to use an adequate source of water.
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Natural selection, through the principle of 'survival of the fittest,' produces adaptations in species by favoring individuals with traits that enhance survival and reproduction. Over time, these traits become more prevalent in the population, leading to adaptations. For example, a bird species may adapt to have longer beaks if this trait provides a survival advantage.
Natural selection is an essential process in evolution, producing adaptations in species over time. It operates on the principle of survival of the fittest, where individuals with traits that enhance survival and reproduction are more likely to pass those traits on to the next generation. As this process is repeated over many generations, these beneficial traits become more prevalent in the population, leading to adaptations.
For example, consider a population of birds that eat insects. Some birds have long beaks while others have short beaks. If long beaks are more efficient at catching insects, those birds are likely to have better nutrition, survive longer, and reproduce more.
Over time, the long beak trait will become more common in the bird population. Such a change in the population due to natural selection is an adaptation to their environment.
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