Area A is located close to a volcanic vent, but area B is far away. What is the expected distribution of iron ore deposits in each area?

Which of the following is an oxidation-reduction reaction? (pictured below)

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

Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?