Answer:
the second one is the correct one
Answer:
In the diagram below, points A and B identify two points in the atmosphere above ... If air has a dry-bulb temperature of 2°C and a ... likely weather conditions? ... What was the relative humidity of the air when these temperatures were recorded?
Explanation:
Answer:
Small external openings of lungs help in two ways:
1. It helps in trapping the dust and pathogens like bacteria, fungal spores et cetera. Larger opening would provide dust and pathogen a wider area to enter into the body.
2. The smaller opening prevents the drying of the respiratory membrane. A moist membrane is essential for the successful exchange of oxygen and carbon dioxide in the lungs.
