Q19. Consider the following statements about NASA’s James Webb Space Telescope:

1. Polyethylene terephthalate (PET) is a type of plastic that is used widely in plastic bottles.

2. Ideonella sakaiensis is a type of bacteria that feeds on all types of plastics.

Which of the above statements are correct?

a) 1 only

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b) 2 only

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c) Both 1 and 2

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d) Neither 1 nor 2

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Solution

The correct option is A
a) 1 only

Ideonella sakaiensis, it appears to feed exclusively on a type of plastic known as polyethylene terephthalate (PET), used widely in plastic bottles.

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Consider the following statements

Which of the above statements is/are correct?

Only 1
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1. These pellets are made of polyethylene and polypropylene, and a few of them were unidentified polymers.

2. Micro plastics include things like films, fibers, fragments and pellets.

3. Due to the short residence time of micro plastics in the sea and on the beaches, they tend to adsorb various pollutants.

Which of the above statements are correct?

Q. Consider the following statements:

1

. A Lagrangian Point is a point in the space where the gravitational pull of the

2

celestial bodies balance each other.

2

. Aditya would be placed at Lagrangian Point L-

3

and James Webb Space Telescope would be placed at the Lagrangian Point L-

2

Which of the given statement(s) is/are correct?

Q4. Consider the following statements about NASA’s James Webb Space Telescope:

1. It will probe the cosmos to uncover the history of the universe from the Big Bang to alien planet formation and beyond.

2. It will orbit around a Lagrange point (L2), or a gravitationally stable location in space, a spot in space near Earth that lies opposite from the sun.

Which of the statements are correct?

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The correct option is A a) 1 only Ideonella sakaiensis, it appears to feed exclusively on a type of plastic known as polyethylene terephthalate (PET), used widely in plastic bottles.

The correct option is A
a) 1 only

Ideonella sakaiensis, it appears to feed exclusively on a type of plastic known as polyethylene terephthalate (PET), used widely in plastic bottles.