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A mineral is a chemical compound composed of specific elements in a crystalline structure. A rock is mixture of one or more minerals.

1. Does the verb require the auxiliary 'essere' or 'avere'

    - Verbs that take esse...

1. In the nucleus of the cell, there are pairs of chromosomes which carry the same genes in the same places. 2) Alleles are different versions of these genes.3) For example, a person may have an allele...

Vaccination is an important method used in healthcare to prevent people from getting certain diseases. Vaccines contain a dead or weakened (attenuated) form of a pathogen, and the immune system res...

When asked to rationalise simple Surd (square roots that cannot be reduced to a whole number) fractions in the form a/√b we are aiming to remove the surd in the denominator (bottom).----------------------...