Apollo 11 was the first manned mission to land on the Moon. The first steps by humans on another planetary body were taken by Neil Armstrong and Buzz Aldrin on July 20, 1969. The astronauts also returned to Earth the first samples from another planetary body.
Answer:
nubmer 8 is the second one
Explanation:
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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:
d. Temperate regions have weak thermoclines (moderate in summer, less in winter)
Explanation:
The theromoclines and how strong they are are crucial for the movement and exchange of nutrients between the surface waters and the deeper waters. The nutrients are mostly found in the deeper and colder waters, so they only reach the surface and shallower waters when the thermoclines are weaker. With the movement of the nutrients toward the surface waters, they provide nutrition for the marine organisms, resulting in much larger populations and much more species to be present. The temperate regions are the ones where the theromoclines start to become weaker because the waters become cooler, especially in the winter when the temperatures are much lower and the waters become colder as well.
We can estimate the age of an open cluster of stars by examining (The turnoff point of the cluster)
