0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

Assertion :Deep sea divers carry oxygen cylinders with them. Reason: The deficiency of oxygen in bottom waters changes the type of organisms also. They are mostly small and fast-growing and can tolerate low concentrations of oxygen. At the bottom only bacteria and fungi can survive.
  1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
  2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
  3. Assertion is correct but Reason is incorrect.
  4. Both Assertion and Reason are incorrect.

A
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
B
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
C
Both Assertion and Reason are incorrect.
D
Assertion is correct but Reason is incorrect.
Solution
Verified by Toppr

Divers carry oxygen cylinders with them as the bottom of sea has low levels of oxygen also known as hypoxia. The deficiency of oxygen in bottom waters changes the type of organisms also. They are mostly small and fast growing and can tolerate low concentrations of oxygen. At bottom only bacteria and fungi can survive.

Was this answer helpful?
3
Similar Questions
Q1
Assertion :Deep sea divers carry oxygen cylinders with them. Reason: The deficiency of oxygen in bottom waters changes the type of organisms also. They are mostly small and fast-growing and can tolerate low concentrations of oxygen. At the bottom only bacteria and fungi can survive.
View Solution
Q2
Assertion
If BOD level of water in reservoir is less than 5 ppm it is not polluted.

Reason
High biological oxygen demand means low activity of bacteria in water.
View Solution
Q3
Assertion: The compressibility factor for H2​ and He is (1+PbRT)
Reason: The compressibility factor for H2​ and He can be derived from Van der Waal's equation.
View Solution
Q4

Assertion (A) Order of the reaction can be zero or fractional.

Reason (R) We cannot determine order from balanced chemical equation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

View Solution
Q5
Assertion : Two electrons of helium atom are placed in only one shell but three electrons of lithium need two shells.
Reason: A shell can have maximum 2n2 electrons.
View Solution