Answer:Conservation tasks
Explanation:Conservation tasks are task which are meant to establish if the child understands that some items features will remain the same even if it is changed in some way such as when you change the shape , length or alter it in any other ways for example the quantity of mud won't change just because you have shaped it differently,at some age children don't understand this term
One euro compared to the dollar is approximately 1.07 US dollars
A pyramid of energy represents how much energy, initially from the sun, is retained or stored in the form of new biomass at each trophic level in an ecosystem. Typically, about 10% of the energy is transferred from one trophic level to the next, thus preventing a large number of trophic levels.
A concept that became popular with department stores is the use of credit: the stores could make money money though this, and people could buy goods that they otherwise could not afford (at the time).
