Yes, because animal experimentation leads to many deaths, also you still don’t have a 100% true idea of what the product is going to do to humans.
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Answer:
Children are clearly less useful in urban settlements, as units of labor and producers, than in rural settings, and are more expensive to house and feed. In fact, fertility levels in developed countries have dropped so low that cities are seldom capable of reproducing their own populations.
Explanation:
Answer:
-Space observatory
Explanation:
Space observatory has allowed exploration beyond our solar system. It has telescopes which collect light and data from objects in space. The light can be collected above atmosphere and is not distorted. There is no light pollution, no twinkling and no attenuation. Also, some of the electromagnetic rays do not pass through the atmosphere. Observation of such radiation is helpful with space observatories.
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