Answer:
Precipitation
Explanation:
Precipitation is water released from clouds in the form of rain, freezing rain, sleet, snow, or hail. It is the primary connection in the water cycle that provides for the delivery of atmospheric water to the Earth.
Answer:
respiration
Explanation:
the production of ATP requires O2. and by respiration, the O2 is provided.
Answer:
The half life of a first order reaction is dependent on the initial concentration of reactant. (And. B)
Explanation:
Half-life: It is depends on the order of reaction, different forms for different reaction orders. It can be determined with time, rate constant of the reaction & initial concentration. The time when the concentration of the reactant is decreased to one half of the initial concentration is called half-life of a reaction.
First order reaction: The half-life of the first order reaction is independent of the initial concentration, is a constant.