Q. Nitrogen can be made available for organism by process of

View solution

Q. Ammonia and nitrate are primary forms of nitrogen in

View solution

Q. Nitrobacteria converts nitrites into nitrates, such a process is known as

View solution

Q. Ammonia can be produced from degradation of dead remainders of organisms, by

View solution

Q. Nitrates are found in coastal up swells and

View solution

Q. Nitrates are a source of electron acceptor in

View solution

Q. Nitrogen is needed for synthesis of nucleotides and

View solution

Q. In ammonification, ammonia is produced from

View solution

Q. Book population bomb was written by

View solution

Q. Rachel Carson was an eminent American

View solution

Q. Book silent spring was written by

View solution

Q. TLV stands for

View solution

Q. Median lethal dose was set up by

View solution

Q. For rats, oral dosage from to 500 to 5000 mg/kg, considered as

View solution

Q. In humans, an estimated oral dosage, ranging from 5000 to 15000 mg/kg, reckoned as

View solution

Q. In rats, estimated evaluation, regarding oral dosage up to 1mg/kg, considered as

View solution

Q. Arsenic is capable of being occured in four different

View solution

Q. In rats, an estimated oral dosage, about 15000 mg/kg, termed as

View solution

Q. In humans, an oral dosage up to 5mg/kg, considerably

View solution

Q. In rats, oral dosage ranges from 5000 to 15000 mg/kg, regarded as

View solution