Question

answer me HOTS NO.1 AND NO.2

Answer 1

heya!

1. scuba divers carry oxygen cylinders because we humans do not have any special organs to respirate in water.we have a pulmonary respiratory system.and that is they carry oxygen cylinders for continuous respiration.
2. whenever we do some heavy workouts or other physical activities almost all our calorie will be burnt and all our energy is lost.so we feel hungry i.e., our stomach goes empty and we begin to feel hungry.

Answer 2

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