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2 years ago

What technological advancement occurred around 300 C.E in Western Africa

2 answers:

8 0

Answer: Africa has the world's oldest record of human technological achievement: the oldest stone tools in the world have been found in eastern Africa, and later evidence for tool production by our hominin ancestors has been found across West, Central, Eastern and Southern Africa.[1] The history of science and technology in Africa since then has, however, received relatively little attention compared to other regions of the world, despite notable African developments in mathematics, metallurgy, architecture, and other fields.

Explanation:

Ket [755]2 years ago

3 0

Answer:

These include steam engines, metal chisels and saws, copper and iron tools and weapons, nails, glue, carbon steel and bronze weapons and art

Explanation:

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According to conformity research, a group's social power is deflated when it loses its

jasenka [17]

I believe the answer is: <span>unanimity
</span><span>unanimity refers to the collective agreement between members of a group to pursue a certain decision.
When a group lose this unanimity, the likelihood of conflicts between group members would also increased, which would most likely diminish the group's social power.</span>

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3 years ago

Mr. Simpson has decided to start a new company to produce bobble-head dolls. He has hired a contractor to build his factory and

Korvikt [17]

Answer:

The answer is B) Entrepreneurship

Explanation:

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3 years ago

The practice of growing corn on a given plot of land in odd numbered years and soybeans on the same plot in even years is know a

leonid [27]

Answer: Crop rotation

Explanation: crop rotation is a farming practice which employs a techniques of planting different crop types on a piece of land in successive manner. Growing corn on a piece of land in odd number of years and then soya beans on the same piece of land is a typical scenario of crop rotation practice.

Crop rotation practice is employed for a number of reasons which include ; Erosion control, Reduction parasite , weeds and diseases caused by plant pathogens. Crop rotation is also used to maintain soil fertility and ultimately boost crop yield.

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3 years ago

A teacher gave a quiz to her class of 30 students. However, she misplaced one of the quizzes. The teacher calculated the mean of

solniwko [45]

Answer:

mean of all 30 students is 69

Explanation:

given data

students = 30

mean = 29

μ = 68 points

student scored = 98 points

to find out

What is the mean for the class of all 30 students

solution

we know here mean score of 29 students is 68

so sum of score is here = 29 × 68

sum of score = 1972

sum of 30 students score is = sum of 29 students score + missing score

sum of 30 students score is = 1972 + 98

sum of 30 students score is = 2070

mean of all 30 students is = $\frac{sum of 30 students}{30}$

mean of all 30 students is = $\frac{2070}{30}$

mean of all 30 students is 69

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3 years ago

Name three examples of emotional dating abuse

ss7ja [257]

Lying, gas lighting, and verbal abuse can be emotional abuse

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3 years ago

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