Statement I: Breathing through the mouth is not recommended.

Statement II: It is because mouth doesn't have any filter mechanism like nostrils to filter dust from the air while breathing.

Both statement I and statement II are true

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Both statement I and statement II are false

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Statement I is true and statement II is false.

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Statement I is false and statement II is true.

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Solution

The correct option is A
Both statement I and statement II are true

We inhale air when we breathe through our nostrils. Fine hair and mucus are present inside the nose to prevent dust particles from getting into the respiratory system. But when we breathe through the mouth, there is no filtration system to filter out dust particles. So it is not recommended.

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Similar questions

Statement - I: $C l^{-} a n d C a^{2 +}$ are isoelectronic species.
Statement - II: Isoelectronic species should have same charges.

Statement - I: $C d$ is a transition element.
Statement - II: $C d$ and $C d^{2 +}$ both have completely filled $d -$ orbitals in their ground state.

_{13}^{30} A l

_{20}^{40} C a

Statement I: 2A+3B $⟶$ C

$\frac{4}{3}$ moles of C always produced when 3 moles of A and 4moles of B are added

Statement II: B is limiting reactant for the given data

I

\to L = I \to ω

II

\to τ = \frac{d \to L}{d t}

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