Prions and the application of microbes — task. Science Test Space, Class 8.

In the given exercise, an assertion is followed by the corresponding reason. Mark the suitable answer from the given options:

1.

Assertion:	Nitrogen is a significant source of plant nutrients.
Reason:	Frankia is a nitrogen-fixing actinobacterium.

Both assertion and reason are correct and reason is the correct explanation of assertion.
Both assertion and reason are correct, but reason is not the correct explanation of assertion.
Assertion is correct but reason is false.
Assertion is false, but reason is correct.

2.

Assertion:	Lactobacillus bacteria increases vitamin B12 content.
Reason:	Vitamin B12 deficiency causes Demensia.

Assertion is correct but reason is false.
Both assertion and reason are correct and reason is the correct explanation of assertion.
Both assertion and reason are correct, but reason is not the correct explanation of assertion.
Assertion is false, but reason is correct.

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