Easy Tutorial
For Competitive Exams

In stratosphere, which of the following elements acts as a catalyst in degradation of ozone and release of molecular oxygen?

Fe
Cl
Carbon
Oxygen
Explanation:

UV rays act on CFCs, releasing Cl atoms, chlorine reacts with ozone in sequential method converting into oxygen Carbon, oxygen and Fe are not related to ozone layer depletion
Additional Questions

The two functional groups characteristic of sugars are

Answer

Which among the following is not a prokaryote?

Answer

The Golgi complex participates in

Answer

Which of the following is not a product of light reaction of photosynthesis?

Answer

Stomatal movement is not affected by

Answer

Which of the following is true for nucleolus?

Answer

The stage during which separation of the paired homologous chromosomes begins is

Answer

Plants having little or no secondary growth are

Answer

Secondary xylem and phloem in dicot stem are produced by

Answer

Casparian strips occur in

Answer
Share with Friends
Privacy Copyright Contact Us