All 3 forms of photosynthesis are based on two pathways. The first are the light reactions, where energy from the sun is absorbed by the chlorophyll of the plant, and the energy is transferred to hydrogen ions which are split off from water (Oxygen is produced at this point).
Definitions for seal the deal. Here are all the possible meanings and translations of the word seal the deal. Wiktionary(0.00 / 0 votes)Rate this definition: seal the deal(Verb) to come to an agreement, to finalise the deal.
A real estate sales contract is a bilateral (two-way) agreement. The seller agrees to sell, and the buyer agrees to buy. Compare this with an option; an option is a unilateral (one-way) agreement in that the seller is obligated to sell, but the buyer is not obligated to buy--it is his option to do so.