Which is the main reason soil in agricultural ecosystems loses its nutrient content over time? a. Crop plants containing soil nutrients are removed from the system each year b. Desertification from overuse causes the rapid loss of nutrients c. Nutrients blow away whenever wind erosion rates are high d. Irrigation leaches nutrients out of the soil

What pattern of migration do whales follow?

Which component in a graph indicates an independent factor? a. y-axis b. x-axis c. scale

Research question: why are the carrots that grew on the left side of the garden larger than the carrots that grew on the right side of the garden? which hypothesis is based on this research question? a comparison of people with gardens to people without gardens will show who is likely to live longer. b. carrots are thought to be good for your eyesight and should be eaten regularly. c. carrots that are provided lots of sunlight grow to a larger size than carrots grown in the shade. d. eating fresh vegetables every day is a healthy thing to do.