Which process adds carbon dioxide to Earth's atmosphere? O cellular respiration
O photosynthesis
O protein synthesis
O none of the above

One does not belong why? ice, gold ,wood ,diamond and table salt

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?