The answer is B because : A=<span>The oppositely-charged ions are arranged in a regular way to form a giant ionic lattice. It is a 'lattice' because the arrangement is a regular one and 'giant' because the arrangement is repeated many times with large numbers of ions. Ionic compounds often form crystals as a result. B=</span><span>Gabbro is a dark, medium- to coarse-grained
intrusive igneous rock composed of calcium plagioclase, pyroxene, and
minor olivine, but no quartz. It is the intrusive equivalent of a
basalt. C=</span><span>The crystallization of an organic compound can produce a mixture of crystalline solids with different solid-state structures (polymorphs).[1] No convenient method now exists to separate crystals of a single polymorph from a mixture of crystals of different polymorphs. D= a fire formed crystal and that is not a rock. </span>
The study of heredity which is a biological process where a parent passes certain genes (traits) onto their offspring. <span>Heredity is the process that makes variations between individuals causing the evolution of species by natural selection. Inherited traits are controlled by one or more genes The study of heredity in biology is genetics.</span>
The only way to send information back and forth is to use radio waves. Just like a radio station broadcasts a signal which you can listen to using a radio, astronauts and people on Earth can broadcast information back and forth to each other. Radio waves are transverse waves.
