51. Which country contains about 50% of the world’s coal resources?
a.
b. China
c.
d.

Option”D” is correct
52. What is Carcinogen?
a.
b.
c.
d.

Option”C” is correct

A carcinogen is any substance, radionuclide, or radiation that promotes carcinogenesis, the formation of cancer. This may be due to the ability to damage the genome or to the disruption of cellular metabolic processes.

53. The Term Smog was introduced in 1905 by-
a.
b.
c.
d.

Option”A” is correct

Des Voeux coined the term smog in 1905 to describe the condition of fog which has smoke in it. C. J.F.

54. The gas that absorbs most of the harmful ultraviolet radiation in the stratosphere:
a.
b.
c.
d. Ozone

Option”D” is correct

Ozone absorbs ultraviolet radiation but lets other types of radiation, such as visible light, pass through. Molecules of ozone absorb ultraviolet radiation. The ozone gas throughout the stratosphere is called the ozone layer. It absorbs harmful ultraviolet radiation from the Sun.

55. Atmospheric ozone layer which protect us from UV-B and C is getting depleted most by addition of-
a.
b.
c.
d.

Option”A” is correct

Atmospheric ozone layer which protect us from UV-B and C is getting depleted most by addition of chlorofluorocarbon.

56. The inherent ability of organisms to reproduce and multiply is called-
a.
b.
c.
d.

Option”B” is correct

The inherent ability of organisms to reproduce and multiply is called biotic potential.

57. The effect of ozone depletion include-
a.
b.
c.
d.

Option”D” is correct

Ozone layer depletion causes increased UV radiation levels at the Earth’s surface, which is damaging to human health. Negative effects include increases in certain types of skin cancers, eye cataracts and immune deficiency disorders.

58. The true statement about “green house effect” is that it is-
a.
b.
c.
d.

Option”C” is correct

The true statement about “green house effect” is that it is caused only by CO2, CFC, CH4 and NO2 gases.

59. UV radiations is injurious to plants because it-
a.
b.
c.
d.

Option”D” is correct

UV radiations is injurious to plants because it causes genetic changes.

60. _________ is the regulatory authority of quality in India.
a. CPCB
b. PCBC
c.
d.

Option”A” is correct

CPCB is the regulatory authority of quality in India.

164 thoughts on “Environmental Science”

  1. I’m really inspired together with your writing talents and also with the layout to your blog. Is this a paid theme or did you modify it your self? Anyway keep up the excellent high quality writing, it’s rare to look a great blog like this one these days!

  2. Explore the ranked best online casinos of 2025. Compare bonuses, game selections, and trustworthiness of top platforms for secure and rewarding gameplayBonus offer.

  3. ¡Saludos, entusiastas del riesgo !
    Casinos extranjeros con juegos de realidad virtual – п»їhttps://casinosextranjerosenespana.es/ п»їcasinos online extranjeros
    ¡Que vivas increíbles recompensas sorprendentes !

  4. ¡Hola, maestros del juego !
    Casino fuera de EspaГ±a que acepta PayPal – п»їп»їhttps://casinoonlinefueradeespanol.xyz/ casinoonlinefueradeespanol.xyz
    ¡Que disfrutes de asombrosas movidas brillantes !

  5. ¡Saludos, amantes de la diversión !
    casino online extranjero con soporte en vivo – п»їhttps://casinosextranjero.es/ casino online extranjero
    ¡Que vivas increíbles giros exitosos !

  6. Этот информационный обзор станет отличным путеводителем по актуальным темам, объединяющим важные факты и мнения экспертов. Мы исследуем ключевые идеи и представляем их в доступной форме для более глубокого понимания. Читайте, чтобы оставаться в курсе событий!
    Детальнее – https://nakroklinikatest.ru/

  7. oakleyopaine

    It’s a fairly democratic operation ahem that link means do your own research so it attracts a wide variety of buyers and dealers who might be priced-out at Phillips or elsewhere. All of that means of course is that there are fewer historically important or unique pieces available but there are still plenty of interesting watches to see and people to watch. Here are three that caught my eye.

  8. ¡Bienvenidos, estrategas del entretenimiento !
    Casino por fuera con mГєltiples opciones de depГіsito – п»їhttps://casinofueraespanol.xyz/ casino por fuera
    ¡Que vivas increíbles botes deslumbrantes!

  9. ¡Hola, fanáticos del entretenimiento !
    casinos fuera de EspaГ±a para grandes ganancias – п»їhttps://casinosonlinefueradeespanol.xyz/ п»їcasino fuera de espaГ±a
    ¡Que disfrutes de asombrosas premios excepcionales !

  10. ¡Hola, cazadores de tesoros !
    Casino por fuera con torneos globales – п»їhttps://casinosonlinefueradeespanol.xyz/ casinos fuera de espaГ±a
    ¡Que disfrutes de asombrosas recompensas únicas !

  11. ¡Hola, buscadores de recompensas excepcionales!
    Casino online sin licencia EspaГ±a con bonos ocultos – п»їhttps://casinosinlicenciaespana.xyz/ casino online sin licencia
    ¡Que vivas increíbles jugadas brillantes !

  12. ¡Hola, fanáticos del riesgo !
    Casino online sin licencia con juegos 3D – п»їcasinosonlinesinlicencia.es casino sin licencia en espaГ±a
    ¡Que vivas increíbles victorias memorables !

  13. ¡Saludos, participantes de juegos emocionantes !
    GuГ­a de casinos no regulados en EspaГ±a – п»їemausong.es casinos sin licencia en espana
    ¡Que disfrutes de increíbles jackpots sorprendentes!

  14. JosephMaido

    Greetings, explorers of unique punchlines !
    Jokes for adults with clever humor – п»їhttps://jokesforadults.guru/ adult joke
    May you enjoy incredible successful roasts !

  15. GilbertCoimb

    Hello discoverers of fresh clarity !
    To combat stubborn tobacco odors, try an air purifier for smoke smell in bedrooms or offices. These units remove particles and neutralize gases. An air purifier for smoke smell keeps indoor spaces fresh around the clock.
    Choose a compact air purifier smoke model for bathrooms or hallways. These units are highly portable and easy to install. best air purifier for smoke A reliable air purifier smoke unit enhances your daily environment.
    Best smoke air purifier for open floor plans – п»їhttps://www.youtube.com/watch?v=fJrxQEd44JM
    May you delight in extraordinary spotless air !

  16. gallowayenamdev

    As for the Series 1 Launch Edition link the prices are as follows CHF 45500 for the tantalum model CHF 48500 for the rose gold and CHF 51500 for the platinum. The brand anticipates producing around five to 10 pieces per month with the first deliveries planned for April. At this time all sales are being done direct with buyers given 14 days to secure their piece with a 25 deposit and the remaining balance due pre-delivery.

  17. Greetings, pursuers of roaring laughter !
    Some of the best adult jokes are hidden gems in everyday conversation. A clever turn of phrase or a surprising twist can work wonders. Master the art of timing, and you’re golden.
    jokesforadults is always a reliable source of laughter in every situation. jokes for adults clean They lighten even the dullest conversations. You’ll be glad you remembered it.
    Clean or Naughty: funny adult jokes That Land – п»їhttps://adultjokesclean.guru/ adult joke
    May you enjoy incredible clever quips !

  18. Hello stewards of pure serenity!
    Pet owners love the best pet air purifier for its ability to neutralize smells after grooming sessions or vet visits. Installing the best home air purifier for pets in the main living area provides noticeable results within 48 hours. A targeted air purifier for pet hair can be used near crates or kennels for added cleanliness.
    The air purifier for cat hair is particularly useful for homes with long-haired breeds or older cats that shed more. Reducing dander with an air purifier for dog smell can also lessen triggers for seasonal allergies.cat air purifierInstalling the best air filter for pet hair near return vents helps keep HVAC systems cleaner and more efficient.
    Air Purifier for Dog Hair That Removes Allergens – п»їhttps://www.youtube.com/watch?v=dPE254fvKgQ
    May you enjoy remarkable unmatched clarity !

  19. Greetings to all risk lovers !
    Local bettors choose 1xbet registration in nigeria for its fast withdrawal process. Nigerian account holders can link multiple payment options. 1xbet registration nigeria The convenience of 1xbet registration in nigeria is unmatched.
    Check out 1xbetregistrationinnigeria.com for updates on special tournaments for Nigerian users. Learn about bonus rollover terms before registering. 1xbetregistrationinnigeria.com also includes live chat support for new sign-ups.
    Register easily on 1xbetregistrationinnigeria.com platform – п»їhttps://1xbetregistrationinnigeria.com/
    Hope you enjoy amazing rounds !

  20. Hello to all wagering enthusiasts!
    New users will be pleased to know that the 1xbet nigeria login registration can be completed without unnecessary paperwork. It’s optimized for both mobile and desktop users. 1xbet ng login registration Just follow the on-screen instructions and you’re in.
    Use your mobile browser for a fast 1xbet nigeria registration online experience. The site detects your device and adjusts accordingly. It’s modern and responsive.
    Complete your 1xbet ng login registration online securely – 1xbetnigeriaregistrationonline.com
    Enjoy fantastic bonuses !

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top