The Ozone Layer

Q. The thickness of the ozone layer is measured in terms of

1. Dobson Unit
2. Light year
3. Richter scale
4. Decibels

Q.

Where is bad ozone found?

Q. The ozone layer lies in the

1. Troposphere
2. Stratosphere
3. Mesosphere
4. Thermosphere

Q.

Ultraviolet radiations can be detected using___________.

Q. According to the 5 kingdom classification, bacteria belong to ______.

1. Kingdom Protista
2. Kingdom Fungi
3. Kingdom Plantae
4. Kingdom Monera

Q. The five kingdom classification was proposed by-

1. C. Linnaeus
2. Virchow
3. A. Roxberg
4. R.H. Whittaker

Q. Which one of the following is not the basis of five kingdom classification?

1. Body organisation
2. Mode of nutrition
3. Reserve food material
4. Cell structure

Q. How many of the organisms listed below are not included in Whittaker’s system of classification?

Cyanobacteria, lichens, mycoplasma, slime moulds, viroids, prions

Q. The ozone layer is ___ km thick.

1. 0.5
2. 5
3. 15
4. 20

Q. The ozone layer is ___ km thick.

1. 0.5
2. 5
3. 15
4. 20

Q.

Which of the following protects humans from the harmful effects of UV radiations?

1. Ozone

2. Smog

3. Thick clouds

4. CO₂

Q. Which of the following is excluded in Whittaker's five kingdom classification?

1. Bacteria
2. Fungi
3. Virus
4. Algae

Q.

UV radiation from sunlight causes the reaction that produces ___.

1. N₂O

2. O₃

3. SO₂

4. CFCs

Q. In the five-kingdom classification of Whittaker there is no mention of