Practice Questions

TLS Online TPP Program

#Question id: 132

Proline is distinct among the 20 commonly found amino acids because

#Life Sciences

it is a ring compound.
it is hydrophilic and ionic.
the nitrogen of the amino group is in a ring.
the carbon of the carboxyl group is in a ring.

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TLS Online TPP Program

#Question id: 39358

#Environmental Science

The international agreement aimed at controlling ozone-depleting substances is:

TLS Online TPP Program

#Question id: 39359

#Environmental Science

Which element released from CFCs directly destroys ozone molecules?

TLS Online TPP Program

#Question id: 39360

#Environmental Science

Q. Ozone depletion results in increased:

TLS Online TPP Program

#Question id: 39361

#Environmental Science

Increased UV-B radiation can cause all EXCEPT:

TLS Online TPP Program

#Question id: 39362

#Environmental Science

Q. Which of the following is an alternative to CFCs?

TLS Online TPP Program

#Question id: 39363

#Environmental Science

Q. Polar stratospheric clouds play a role in ozone depletion by: