Subject Collection

UPSC Prelims 2013 Science & Technology

Science & Technology PYQs for UPSC Prelims 2013.

2013 Science & Technology

Many transplanted seedlings do not grow because -

2013 Science & Technology

Mycorrhizal Biotechnology has been used in rehabilitating degraded sites because mycorrhiza enables the plants to - 1. Resist drought and increase absorptive area 2. Tolerate extremes of pH 3. Resist disease infestati...

2013 Science & Technology

Consider the following phenomena: 1. Size of the sun at dusk 2. Colour of the sun at dawn 3. Moon being visible at dawn 4. The twinkle of stars in the sky 5. Polestar being visible in the sky Which of the above are o...

2013 Science & Technology

Consider the following minerals - 1. Calcium 2. Iron 3. Sodium Which of the minerals given above is/are required by the human body for the contraction of muscles?

2013 Science & Technology

Consider the following animals: 1. Sea cow 2. Sea horse 3. Sea lion Which of the above is/are mammal/mammals?

2013 Science & Technology

Recombinant DNA technology (Genetic Engineering) allows genes to be transferred 1. Across different species of plants. 2. From animals to plants. 3. From microorganisms to higher organisms. Select the correct Solutio...

2013 Science & Technology

Improper handling and storage of cereal grains and oilseeds result in the production of toxins known as aflatoxins which are not generally destroyed by normal cooking process. Aflatoxins are produced by

2013 Science & Technology

Ball bearings are used in bicycles, cars, etc., because

2013 Science & Technology

During a thunderstorm, the thunder in the skies is produced by the 1. Meeting of cumulonimbus clouds in the sky 2. Lightning that separates the nimbus clouds 3. Violent upward movement of air and water particles Sele...

2013 Science & Technology

Rainbow is produced when sunlight falls on drops of rain. Which of the following physical phenomena are responsible for this? 1. Dispersion 2. Refraction 3. Internal reflection Select the correct Solution using the c...

2013 Science & Technology

The efforts to detect the existence of Higgs boson particle have become frequent news in the recent past. What is /are the importance/importance of discovering this particle? 1. It will enable us to understand as to w...

2013 Science & Technology

Which of the following diseases can be transmitted from one person to another through tattooing? 1. Chikungunya 2. Hepatitis B 3. HIV-AIDS Select the correct answer using the codes given below.

2013 Science & Technology

Which of the following statements is/are correct? 1. Viruses lack enzymes necessary for the generation of energy. 2. Viruses can be cultured in any synthetic medium. 3. Viruses are transmitted from one organism to ano...

2013 Science & Technology

Fruits stored in a cold chamber exhibit longer storage life because -

2013 Science & Technology

With reference to the usefulness of the by-products of the sugar industry, which of the following statements is/are correct? 1. Bagasse can be used as biomass fuel for the generation of energy. 2. Molasses can be used...

2013 Science & Technology

The known forces of nature can be divided into four classes, viz, gravity, electromagnetism, weak nuclear force and strong nuclear force. With reference to them, which one of the following statements is not correct?