Answer:
D: modern technology
Explanation:
Modern technology was usually imported from other countries and was not a domestic resource to Africa.
It is possible, during times of drought, for water that has been removed from the root zone of the plant as a result of downward percolation to travel back up into the root zone through capillary movement.
This will be discussed in further detail below.
<h3>What exactly is the movement of capillaries?</h3>
Percolation is the process by which water moves downward through the root zone of a plant. When circumstances are dry, water that has traveled downward through the root zone as a consequence of percolation may possibly travel back up into the root zone of the plant. In general. capillary movement and migration
Only when the adhesive forces in the liquid are greater than the cohesive forces, which always produce surface tension, can capillary action take place. Capillary action is a physical phenomenon.
In conclusion, the phenomenon known as capillary action refers to the movement of a liquid through a limited space either without the assistance of any external forces, such as gravity, or even in opposition to such force.
Read more about it. capillary movement
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<span>Hydroelectric power is produced as water passes through a dam, and into a river below. The more water that passes through a dam, the more energy is produced. Once a dam is built, an artificial man-made lake is created behind the dam. Electricity is produced by a device called a turbine.
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