The four characteristics of a mineral are:
1. Cleavage- the way it breaks, whether flat or roughly.
2. Luster- the way light reflects off of it, i.e. pearly, shiny, etc.
3. Streak- the color that its powder is
4. Hardness, for example, diamond is the hardest mineral, this is usually measured on the Mohs scale.
Answer:
A system for growing food without using much land
Explanation:
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Science contributes to technology in at least six ways , new knowledge which serves as a direct source of ideas for new technological possibilities.
