The value of A is 78 degrees.
River systems are very important as they are the water source for the wheat and if the wheat doesn't have any water they will dry up and no wheat will be created as the plant didn't get the nutrients they needed.
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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Answer:
Working age population declining
The number of female babies killed, abandoned, or placed in orphanages increased as a result of the policy. Even after the one-child policy was rescinded, China's birth and fertility rates remained low, leaving the country with a population that was aging too rapidly as well as a shrinking workforce
Answer:
because some had feathers
Explanation: