Electrically charged particles from space travelling at speeds of several hundred km/sec can severely harm living beings if they reach the earth's surface. What prevents them from reaching the surface of the earth?
Important Questions on Previous Year's Questions
Regular intake of fresh fruits and vegetables is recommended in the diet since they are good sources of antioxidants. How do antioxidants help a person maintain health and promote longevity?
A company marketing food products advertises that its items do not contain trans fats. What does this campaign signify to the customers?
1. Food products are not made out of hydrogenated oils.
2. The food products are not made of animal fats/oils.
3. The oils used are not likely to damage the cardiovascular health of consumers.
Which of the statement(s) given above is/are correct?
A married couple adopted a male child. A few years later, twin boys were born to them. The blood group of the couple is AB positive and O negative. The blood group of the three sons is A positive, B positive and O positive. The blood group of the adopted son is_____.
The surface of a lake is frozen in severe winter but the water at its bottom is still liquid. What is the reason?
Microbial fuel cells are considered as a source of sustainable energy. Why?
1. They use living organisms as catalysts to generate electricity from certain substrates.
2. They use a variety of inorganic materials as substrates.
3. They can be installed in wastewater treatment plants to cleanse water and produce electricity.
Which of the statement(s) given above is/are correct?
