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

Aflashlight produces light using energy from the batteries. in which order does the energy change form? a. from chemical to electric to light energy b. from electric to light to chemical energy c. from electric to chemical to light energy d. from light to electric to chemical energy

In the diagram below, which organelle is a ribosome, which combines amino acids and produces proteins? о

Lumps of iron and manganese ore called can be harvested from the seafloor near underwater volcanoes.