NCERT objective type questions — task. Science CBSE, Class 7.

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Choose the correct answer:

1. During the process of exhalation, the ribs move

up and outwards
down and outwards
up and inwards
down and inwards

2. The roots of a plant take up oxygen from the __________ trapped between _________ the particles.

trachea
air, soil
floor
somata

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