Over time, the rate of the chemical reaction decreases since the substances reacting with each other are finally “processed” and nothing remains, therefore the reaction cannot continue.
The value of excretion is very great both for humans and animals due to excretion, the body is freed from non-processed or toxic substances and waste products. the
Animals of the forest-steppe: hare, wolf, fox, mouse. Red deer, European roe deer, squirrel, wild boar live in forest zones. A typical representative is the jerboa, gopher.
The Portuguese nobility and the trading class were very interested in opening the sea route to Asia (in particular, to India and China). However, by that time, nautical
There is an interspecific, intraspecific struggle and struggle with an unfavorable environment. At the same time, a person is not taken into account – this is a social