From the reaction of 8g of hydrogen with oxygen, 70g of water have been formed. How much oxygen has been consumed in this reaction?​

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

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 is not a likely outcome after extensive irrigation of dry farmland? useless, unproductive soil salinization of the soil depletion of groundwater nutrient-rich soil