Answer:
Explanation:
Between about 800 and 1200 AD, partly in response to the new currents of trade, Africans in the southern sahel developed a set of trading states with an elaborate organization.Well before 1500 AD, a number of states had come into existence, that had no connection at all with the trade across the Sahara.
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Answer:
The correct option is;
A. Recharges freshwater aquifers
Explanation:
Sedimentary deposits or formations of rock material with sufficient porosity for water retention are known as aquifers
The episodic movement of water from land surfaces, following a storm or other unsaturated areas into a saturated zone is known as aquifer recharge
The natural source of freshwater aquifer recharge is therefore through rainfall or surface waters from wetlands.
Answer:
It reduces strength.
Explanation:
It not desirable to produce concrete mixtures of a higher consistency than normal because the strength of the concrete decreases. Consistency plays an important role in the determination of strength of concrete. Less water than normal quantity in concrete increases the consistency but decreases strength due to incomplete chemical reaction while on the other hand, adding more water would increase water-cement ratio and reduces consistency as well as strength of the concrete so that's why necessary amount of water and cement should be added to get higher strength.
In the case above, Kittay define “doula” as depending on others in times of vulnerability.
<h3> What is
doula?</h3>
The term doula is known to be a kind of a service or one can say the reverence of a thing.
Note that it is that which is said to be due to God but it is one that is known to be appropriate to a human life.
It is also seen in the context where the action of God is seen in the material present and also at work
In the case above, Kittay define “doula” as depending on others in times of vulnerability.
Learn more about doula from
brainly.com/question/879750
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I think the best thing to do is if theres an emergency brake use it or run into a tree but that is ur unsafe answer
