Answer:
Crusades affected Medieval Europe in various ways. One of them was to spread trade and knowledge in Europe.
Explanation:
This is what helped the European economy get strong while the feudalism was being destroyed. Crusades were organized by Christians from West Europe after centuries of wars for spreading Islam. The purpose of crusades was to stop the expansion of Muslim countries, the return of Christianity and territories that once belonged to the Christians.
It is True, oxidation is associated with an increase in oxidation number.
An oxidation; reduction or redox reaction is a reaction that involves the transfer of electrons between chemical species (the atoms, ions, or molecules involved in the reaction). Redox reactions are all around us: the burning of fuels, the corrosion of metals, and even the processes of photosynthesis and cellular respiration involve oxidation and reduction. Oxidation states are typically represented by integers which may be positive, zero, or negative.
The term oxidation was first used by Antoine Lavoisier to signify the reaction of a substance with oxygen. Much later, it was realized that the substance, upon being oxidized, loses electrons, and the meaning was extended to include other reactions in which electrons are lost, regardless of whether oxygen was involved.
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<span>The storage areas are called : Reservoirs
Reservoirs can both be made by nature or crafted by men.
In order to make our lives became easier , we could create our own reservioir by digging up an open land to form a space that could contain water when its raining, as a back up resources when the lake or rivers are drying up</span>
