Home
Class 11
CHEMISTRY
UV radiation causes a)Melanoma b)Agening...

UV radiation causes a)Melanoma b)Agening of skin c)Cataract d)All

A

Melanoma

B

Agening of skin

C

Cataract

D

All

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ENVIRONMENTAL CHEMISTRY

    NARAYNA|Exercise EXCERCISE- I (H.W) (Water pollution)|21 Videos
  • ENVIRONMENTAL CHEMISTRY

    NARAYNA|Exercise Excercise - II (a) (C.W) (Enviromental Segments, Definitions & Terms)|7 Videos
  • ENVIRONMENTAL CHEMISTRY

    NARAYNA|Exercise EXCERCISE- I (H.W) (Environmental Segments, Definitions & Terms)|5 Videos
  • CLASSIFICATION OF ELEMENTS AND PERIODICITY

    NARAYNA|Exercise EXERCISE - 4|17 Videos
  • F-BLOCK ELEMENTS

    NARAYNA|Exercise LEVEL-II (C.W)|1 Videos

Similar Questions

Explore conceptually related problems

UV radiations cause

Which radiations causes DNA damgage leading to neoplasitc trnsformations ? (a) Ionising radiations (b) X-rays (c) Non-ionising radiations (d) UV-rays

The disease caused by UV radiation(s) in human is/are melanoma (skin cancer) heart attack hypertension cough cold Identify the correct option.

Which of the following is/are the harmful effect(s) of UV radiation? It causes mutation in the cell. UV radiation leads to ageing of skin. It kills many phytoplanktons. It causes global warming.

U.V. radiation from the sun causes a reaction in the atmosphere that leads to production of

Assertion (A): UV radiation causes photodissociation of ozone into O_(2) and O, thus causing damage to the stratospheric change. Reason (R): Ozone hole is resulting in global warming and climate change.

The upper stratosphere consists of considerable amount of X. X protects us from the harmful ultraviolet radiations coming from the sun. These radiations cause skin cancer (melanoma) in humans. X is :

Identify the correct statement // statements a) Radiation causes genetic mutation b)Restriction is blood circulation can be detected using radio-iodine c)Hydrocarbon plastics are used as moderators in a nuclear reactor d)The damage caused due to alpha -radiation is small due to its small penetrating power

Read the following text and answer the following questions on the basis of the same: Ozone layer depletion: We are all exposed to UV radiation from the sun. The sun is by far the strongest source of ultraviolet radiation. UV radiation spectrum is divided into three regions called UVA, UVB and UVC. As sunlight passes through the atmosphere, all UVC and most UVB is absorbed by ozone, water vapour, oxygen and carbon dioxide. UVA is not filtered as significantly by the atmosphere. The three types of UV radiation are classified according to their wavelength. They differ in their biological activity and the extent to which they can penetrate the skin. The shorter the wavelength, the more harmful the UV radiation The UV region covers the wavelength range 100-400 nm and is divided into three bands: • UVA (315-400 nm) • UVB (280-315 nm) • UVC (100-280 nm). Short-wavelength UVC is the most damaging type of UV radiation. However, it is completely filtered by the atmosphere and does not reach the earth's surface UV level reaching the earth changes with latitude and altitude. UV levels are higher closer to the equator. Closer to the equator the sun's rays have a shorter distance to travel through the atmosphere and therefore harmful UV radiation absorption is less. With increasing altitude less atmosphere is available to absorb UV radiation. With every 1000 m in altitude, UV levels increase by approximately 10%. Ozone is a particularly effective absorber of UV radiation. As the ozone layer gets thinner, the protective filter activity is progressively reduced. Consequently, the people and the environment are exposed to higher levels of UV radiation, especially UVB. Ozone depletion is caused by human-made chemicals released into the atmosphere. Ozone layer depletion is caused by