The answer is heavy/dense
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Answer: Companies whose r&d staffs cannot find a solution to a biological or chemical problem can post the challenge at <span>InnoCentive Inc </span>and offer a chase reward for a practical solution.
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-Chris
Answer:
Vitiligo and leucoderma are two well-known skin coloration disorders characterized by a loss of skin coloration. They are different though. Vitiligo occurs in people who are born with normal skin pigmentation as opposed to albinism when an individual is born without skin pigmentation (lack active melanocytes).
Explanation:
The scratch test.
The scratch test is used by scientists and people who study rocks and minerals to determine the strength of the rock. They have the scratchers numbered one through ten and scratch the rock or mineral until the scratcher makes a mark in the mineral then they know the strength of the rock.
