FEMALE: At birth, there are approximately 1 million to 2 million eggs; by the time of puberty, only about 300,000 remain. Of these, only about 500 will be ovulated during a woman's reproductive lifetime.
1. A calorie is a unit that is used to measure energy.
Answer: Physical strength
Explanation:
The main difference between outdoor and indoor games is that outdoor games usually are the ones that are requiring more physical strength and indoor games are usually ones that are requiring more mental ability.
Indoor sports can be dangerous if the person is using great physical strength because the person can hurt himself or get serious and dangerous injuries.
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