How does planting high-yield crop varieties make farming more sustainable? a. it increases the amount of water needed. b. it keeps soil fertility from diminishing over time. c. it keeps chemicals from entering the watershed. d. it decreases the amount of land needed.

Select the correct answer from each drop-down menu. in an experiment, dr. travis examined the effects of calcium intake on osteoporosis, a condition that causes an increased risk of bone fractures. the amount of calcium is variable. the risk of bone fractures .

What is the statement plant growth is affected by the color light

Im inn a ! what"s the answer which of the following is one way creativity can scientists? by ensuring they follow the scientific method by increasing the amount of time it takes to complete scientific experiments by making sure they only try things that have already been proven by leading them to ask more questions about the natural world