Ten plants are grown in equal amounts of sunlight with equal amounts of water and varying amounts of fertilizer. Fertilizer is a(n):

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

The same side of the moon always faces earth because the

What must be in balance for temperatures to remain constant?