Answer:b. developments such as the three-field system and the padded horse collar meant that agriculture actually improved from classical time.
Explanation:Early Middle Ages or Early Medieval Period , sometimes referred to as the Dark Ages , as lasting from the 5th or 6th
century to the 10th century.
In the 19th century the Early Middle Ages were often labelled the "Dark Ages" , a characterization based on the relative scarcity of literary and cultural output from this time.
The early middle Ages generally believed to have started with the fall of the Roman Empire in 476 and to have lasted about 1,000 years until about 1450. The beginning of the Middle Ages is called the Dark Ages because the great civilizations of Rome and Greece had been conquered.
Water is very important for human beings.without water we can die. For example we don’t have water in our locality and we even forget to save some water. Then it will be difficult for us to do household things like washing dishes cooking foods bathing.water is not only important for our life but also helps to fulfill some features like cooking washing clothes etc
to visit its world-famous cities
Less;less
warm air is less dense as you can see in the case of air just above fire. air becomes warm and moves upward..
warm air holds less moisture as in winters you can see mist die to the vapours present in cold air.
in summers there is less moisture when air is warm..
it is so because hot air has more energy n water vapours spread out...
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