Quartz also has a hardness level of 7.5, so rubbing another mineral with a 7.5 hardness on it will not effect the quartz.
Answer:
Deforestation, which is logging or burning forests, is a way in which humans cause erosion. Removal of the vegetation covering the ground causes the soil, which is unprotected against wind and water, to erode. The loss of topsoil essentially destroys the ability for the land to regenerate.
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Answer:
The basic unit of classification of living beings, from the taxonomic point of view, is species.
Explanation:
Taxonomy is a discipline that deals with the classification of living beings, its basic unit of classification being the species category.
<u>A species includes all the individuals with morphological and functional similarities</u>, which also have the capacity to make crosses among them and have a descendant with the same characteristics, including fertility.
the insertion on removal of mutations are dangerous in nature. the process is basically just one large gamble to see what it does. and even though we have a decent understanding of the genomes of many animals and plants, we still dont know everything. so if we tamper with certain genes we may cause a evolution or we might kill the subject and the potential for it to procreate.