Why is the sun's renewable energy important to animals? 1. they are able to directly convert the sun's energy into food
2. they eat plants that get their energy from the sun
3. the suns energy isn't important to animals because they don't depend on the plants
4. they absorb the sun's energy through their skin as a way of staying warms

Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .