Hot underground water is used in many countries for heating, for showers and baths, for heating greenhouses and greenhouses. Some countries have adapted to separate minerals from such
These problems: m (weight of iron taken) = 500 g (0.5 kg); Δt (required change in iron temperature) = 14 ºС. Reference values: Szh (specific heat capacity of
In the triangle opposite the smaller angle lies the smaller side of the triangle, then the sought angle ACB. Let’s apply the cosine theorem for a triangle. AB
In simple terms, higher plants are more developed, more perfect than lower ones. Typically, these plants have full root, stem and leaves, with the exception of mosses. Although
Mass selection is different from individual selection. With individual selection, a person chooses certain organisms for further crossing and breeding. Selection is based on these principles. Mass selection