Answer:
Reversibility
Explanation:
In simple words, Because it represents the commencement of reasoned or practical reasoning, Piaget believed the tangible stage to be a crucial turning point in a preschooler 's cognitive growth. The kid has reached the age where logical reasoning or procedures (i.e. principles) may be applied, but only to tangible things (thus concrete operational).
The correct answer is - fertile soil.
The Great European Plain, also referred to as the Russian Plain, is dominated by lowlands, naturally covered with dense grasses, and is known for its fertile soil. Most of the soil in this large plain is has very rich and deep upper, humus layer. The reason for this is that the grasses that grow their die out each year, and as they die out they decompose very quickly, giving the soil a new layer of decomposed biomass each year.
Because of the properties of the soil, this the region of Europe that is heavily used for farming, mostly crops like the wheat, hops, and corn. The conditions are excellent for them, they do not take a lot of the soil, and also contribute to keeping the soil very fertile constantly with their decomposing roots and steams.
You did not name the years, so I can not answer it if it is multiple choice
Answer:
its biological unless it trans gender which is pretty rare but that means your both but that's genetic
