Question
What causes the permanent hardness of
water?Solution
Permanent hardness of water is caused by the presence of soluble salts of chlorides and sulfates of calcium and magnesium. Unlike temporary hardness, which can be removed by boiling, permanent hardness remains unless treated with a chemical process.
Which among the following is the most commonly used central tendency?
What was the name of "the Commission for Agricultural Costs and Prices (CACP)" prior to 1980?
FOB in international trade stands for:
In British Drug House (BDH) method of pH testing, soil is mixed with distilled water, universal indictor solution and ______for a colour reaction.
The areas suffering from non-availability of ground water due to over exploitation are popular referred to as which of the following?
Ecological study of individual organism is known as
Which of the following is an example of a C₄ plant that produces OAA?
The rotation of the Earth contribute to the development of high and low-pressure systems by
Among the following, which is not a breed of goat?
Ecology is the scientific study of the relationships between living organisms and their environment. Who first proposed the term "ecology"?
Relevant for Exams:
