Natasha wants to know whether adding coffee to the soil will help plants grow. She plants seeds in pots and adds coffee to the soil. What else should Natasha do to find out if coffee helps plants grow? A give the plants fertilizer B. add more water to the soil C. put the plants in the shade D. grow some seeds without coffee​

D

Explanation:

This will let her knows the deference between plant with coffee and plant without coffee and from this she will know if coffee helps plants grow or not

presidency should be the title

its main object was the establishment of "settlement houses" in poor urban areas, in which volunteer middle-class "settlement workers" would live, hoping to share knowledge and culture with, and alleviate the poverty of, their low-income neighbors.