1) Other than resistance to pests,
what are the prospects for which genetically engineered plants have been
created?
(A) To enable them to withstand
drought
(B) To increase the nutritive value
of the produce
(C) To enable them to grow and do
photosynthesis in spaceships and space stations
(D) To increase their shelf life
2) What is the role of ultraviolet
(UV) radiation in the water purification systems?
1. It inactivates/kills the harmful
microorganisms in water.
2. It removes all the undesirable
odours from the water.
3. It quickens the sedimentation of
solid particles, removes turbidity and improves the clarity of water.
Which of the statements given above is/are correct?
(A) 1 only
(B) 2 and 3 only
(C) 1 and 3 only
(D) 1, 2 and 3
3) Graphene is frequently in news
recently. What is its important?
1. It is a two-dimensional material
and has good electrical conductivity.
2. It is one of the thinnest but
strongest materials tested so far.
3. It is entirely made of silicon
and has high optical transparency.
4. It can be used as ‘conducting
electrodes’ requires for touch screens, LCD’s and organic LED’s
Which of the statements given above are correct?
(A) 1 and 2 only
(B) 3 and 4 only
(C) 1,2 and only
(D) 1, 2, 3 and 4
4) With reference to ‘stem cells’,
frequently in the news which of the following statements is/are correct?
1. Stem cells can be derived from mammals only.
2. Stem cells can be used for screening new drugs.
3. Stem cells can be used for medical therapies.
Select the correct answer using the codes given below:
1. Stem cells can be derived from mammals only.
2. Stem cells can be used for screening new drugs.
3. Stem cells can be used for medical therapies.
Select the correct answer using the codes given below:
(A) 1 and 2
(B) 2 and 3 only
(C) 3 only
(D) 1, 2 and 3
5) A team of scientists at
Brookhaven National Laboratory including from India created the heaviest
anti-matter (anti-helium nucleus). What is/are the implications of the creation
of anti-matter?
1. It will make mineral prospecting and oil exploration easier and cheaper.
2. It will help probe the possibility of the existence of stars and galaxies made of anti matter.
3. It will help understand the evolution of the universe.
Select the correct answer using the codes given below:
1. It will make mineral prospecting and oil exploration easier and cheaper.
2. It will help probe the possibility of the existence of stars and galaxies made of anti matter.
3. It will help understand the evolution of the universe.
Select the correct answer using the codes given below:
(A) 1 only
(B) 2 and 3 only
(C) 3 only
(D) 1, 2 and 3
(B) 2 and 3 only
(C) 3 only
(D) 1, 2 and 3
6) Recently there has been a
concern over the short supply of a group of elements called rare earth metals.
Why?
1.China ,
which is the largest producer of these elements, has imposed some restrictions
on their export.
2 Other than china,Australia ,
Canada , Chile , these elements are not found
in any country.
3 Rare earth metals are essential for the manufacture of various kinds of electronic items and there is growing demand for these elements.
Select the correct answer using the codes given below:
(A) 1 only
(B) 2 and 3 only
(C) 1 and 3 only
(D) 1, 2 and 3
1.
2 Other than china,
3 Rare earth metals are essential for the manufacture of various kinds of electronic items and there is growing demand for these elements.
Select the correct answer using the codes given below:
(A) 1 only
(B) 2 and 3 only
(C) 1 and 3 only
(D) 1, 2 and 3
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