Dana is reading about the best conditions for worm composting. Worm composting involves keeping worms in a bin with vegetable scraps from the kitchen along with other plant waste, and using the soil and drippings they produce to improve gardens.
What should she do?
Here are your answers
A.She should test the variables all at once in three different bins with the same amount of worms.
B. She should test the variables one at a time by keeping two of the variables constant and testing the third.
C. She should test the variables at the same time by keeping one of them constant and testing the other two.
D. She should test a different variable in the same bin over the course of a week, allowing two days for each variable.
im not sure if its b or c pls help
1 answer