Answer: B. Annual river floods replaced the soil, which improved the crops.
Explanation: Annual floods enriched the soil by dragging nutrients through the water, improving and speeding the growth of crops.
Shared power is the equivalent to concurrent power.
Immigrants have chosen to live in the middle colonies because they are seen as a "greater opportunity"
<span>Phototropism
</span>When certain plants respond to light stimuli and p<span>hototropism takes place as a result.</span>