CBSE · Class 7 · Science · Respiration in OrganismsWhat is a single breath defined as?
Step-by-Step Solution
A breath consists of one inhalation followed by one exhalation. The breathing rate tells us how many times a person breathes in a minute.
Detailed Options Breakdown
Option : Only inhalation
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Respiration in Organisms.
Option 1: Only exhalation
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Respiration in Organisms.
Option 2: One inhalation plus one exhalation (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 3: Two inhalations and two exhalations
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Respiration in Organisms.
💡 Study Guide: This question tests core syllabus concepts from Respiration in Organisms. For formulas, key summaries, and mock exam reference guides, read the full Respiration in Organisms Revision Notes.