Answer:
Mineral resources are a concentration of minerals in Earth's crust that can be extracted and processed now or in the future, and including unidentified sources. Mineral reserves are those that are identified and can be mined profitably under current economic conditions with current technology. Both are potentially valuable, and for which reasonable prospects exist for eventual economic extraction
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Ionic bond is a compound made up of a meta and a non-metal eg NaCl (sodium chloride)
covalent bond is made up of two non-metals eg H2O (water)
Answer:
(c) directional selection
Explanation:
Directional selection is a type of natural selection that occurs when members of a population of a species with a particular extreme phenotype is selected or favored against the other phenotypes when natural forces act on the population of a species. Individuals having the particular traits that are favored survive and become more common that others with traits that are less favored.
Directional selection may likely result in the species of butterflies in which darkly collared butterflies are not preyed upon, ensuring their survival, while the other butterflies with other colors will be phased out with time. Darkly colored butterfly will be selected for while the others will be selected against.
Answer:
Organic molecules produced from spontaneous synthesis or from meteorites
Explanation:
Answer:
Industrialization and revolution are the same because they bring a positive sudden change into the society.
Explanation:
A sudden change in the society meant to be a major result of revolution. This also goes along with industrialization, because the more there are creation of industries, the more the will be increase in employment rate and production of foods, which will eventually raise the standard of living of the people in the society.