Choose the correct answer II — task. Science State Board, Class 8.

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1. __________ joints are immovable.

Upper jaw and skull
Lower jaw and upper jaw
Knee and joint
Shoulder and arm

2. Why do underwater divers wear fin-like flippers on their feet?

To walk over the bottom of the sea (sea bed)
To swim easily in water
To walk on water surface
To look like a fish

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