Water diversion and irrigation has allowed humans to grow crops in areas where natural supplies have been limited. A major challenge that exists in these regions has been . salinization of soils low crop diversity soil erosion high pesticide use high trophic-level efficiency

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus

it is a limiting nutrient limited by a single nutrient in the ecosystem, & the single goes very slow.

the correct answer was location c, because earth is tilted away from the sun at this time

answerclassical conditioning;