Answer:
A. increased; Great Migration
Explanation:
When the migration began, 90 percent of all African-Americans were living in the South. By the time it was over, in the 1970s, 47 percent of all African-Americans were living in the North and West. A rural people had become urban, and a Southern people had spread themselves all over the nation.
Answer: Based on the provided information, the chemical will help the black walnut trees compete with plants growing nearby By suppressing the growth of the other plants.
What are non toxic chemicals?
Non toxic chemicals can be regarded as these chemicals that are not harmful to the plant.
According to this question, we were informed about Black walnut trees that produce a nontoxic chemical that becomes highly toxic when it is exposed to air or soil.
As a result of this we can see that the growth of other plants will be affected as a result of the chemical by the first plant.
Therefore, option B is correct.
Learn more chemicals at:brainly.com/question/112803
Explanation:
Answer:
Explanation:
y-y = m(x - x)
I couldn't tell if the point was negative, so I'll do both
Positive Negative
(6,6) m= 1/3 -(6,6) m= 1/3
y-6 = 1/3(x - 6) y+6 = 1/3(x +6)
y-6 = 1/3x - 2 y+6 = 1/3x + 2
y = 1/3x +4 y = 1/3x - 4
Answer:
The Greeks had to raise crops and animals suited to the hilly environment and the climate of hot, dry summers and wet winters. Their crops were wheat, barley, olives and grapes.
It is relatively stable hopefully this is the answer
