Aquatic Toxicology Part-3

1:an agent that can produce adverse effects in biological system and cause death called

  1. Toxicant
  2. Benefits
  3. Harmless
  4. None of above

2.unacceptable chemical effects cause damage due to exposure

A. Low concentration of chemical for Long Time

B. More concentration of chemical for short time

C. Both A and B

D. None of the above


3. More detailed toxicology investigation required by which test when it is violated

A. Toxicity test design

B. Alloxim test design

C. Grand test design

D. Both A and B


5. Toxicity produce____effects in plant and animal

A. Acute

B. Chronic

C. Both A and B

D. Beneficial


6. Water qualities guidelines was given by

A. Stephen get 1985

B. Darwin 1987

C. Linneaus 1876

D. None of these


7. Sedimentary guidelines was given by

A. Stephen el 1998

B. De toro 1991

C. Linneaus 1789

D . Carlos 1992


8. ___ state is reached b/w external chemical concentration and concentration at target site of organism

A. Steady state

B. Circle state

C. Both A and B

D. None of these


9…..,.. test is used to concern with adverse effect of a substance on organisms

A.Benedict test

B.Fehling test

C.Toxicity test

D.None of these


10. Once threshold relationship is established the potency and kinetic information used to interpret before

A. Steady state

B. Threshold state

C. Stop stat D none of these