Radiant heat energy from the sun is most directly responsible for which of the following events of the hydrologic cycle? return of water to the earth by precipitation transport of water across the earth's surface condensation of water vapor into clouds evaporation of ocean water into the atmosphere

What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots

Classify this reaction: 2al+n2-> aln.

16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.