Noise is measured using sound meter and the unit is
A) hertz
B) decibel
C) joule
D) sound
Correct Answer:
Verified
Q9: Which of the following is the major
Q10: Minamata disease was caused by pollution of
Q11: A river with high BOD value is
A)highly
Q12: 5th June is observed as
A)world forest day
B)world
Q13: Cement factory labourers are prone to
A)leukemia
B)bone marrow
Q15: The undesirable change in physical, chemical or
Q16: Which of the radioactive material is largely
Q17: Lead poisoning
A)reduces O2 carrying capacity of haemoglobin
Q18: The occurrence of pesticides like DDT in
Q19: Earth summit was held in
A)Stockholm in 1972
B)Rio
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