Answer:
Plants take up nitrogen compounds through their roots. Animals obtain these compounds when they eat the plants. When plants and animals die or when animals excrete wastes, the nitrogen compounds in the organic matter re-enter the soil where they are broken down by microorganisms, known as decomposers. This decomposition produces ammonia, which can then go through the nitrification process.
A learning process that occurs when two stimuli are repeatedly paired; a response that is at first elicited by the second stimulus is eventually elicited by the first stimulus alone.
Operant conditioning is a learning process through which the strength of a behavior is modified by reinforcement or punishment. It is also a procedure that is used to bring about such learning
Explanation:
Answer is D.
D.Laws were made by representatives of the citizens.
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Nonmetal
Nonmetal (brittle, doesn't react with acid, and doesn't conduct electricity are factors of a nonmetal).
Since he never had an accident during the period, the premiums he paid were Expired
When you buy a premium from an insurance company, they will give you some sets of clauses which gives the condition within a specified period of time for the insurance to be paid.
If the none of the clauses were met during the period, your premium will expire , unless you renew it with your insurance company
