Environmental Science - General Knowledge Questions and Answers

View in English View in Hindi

A variety of different bacteria and yeasts live on human skin. Together they are considered to be a/an?

A)

Ecosystem


B)

Population


C)

Community


D)

Trophic level



Correct Answer :

Community

The method of rainwater harvesting which can be adopted by individual house owners is?

A)

Construction of recharge trenches


B)

Onchannel storage of water


C)

Harvesting new water channel


D)

Rooftop rainwater harvesting



Correct Answer :

Rooftop rainwater harvesting


Explanation :

Roof-top rainwater harvesting (RRH) involves diverting and recharging (or) storing of the rainwater that falls on the roof of a house.
RRH is a common practice implemented in individual houses as well as apartment complexes for recharging of ground water. In such cases, harvested water is directed into a recharge pit which collects and slowly recharges into the groundwater storage / aquifer in that area.

Fuel cost is zero in which kind of energy?

A)

Wind energy


B)

Coal energy


C)

Nuclear Energy


D)

Tidal energy



Correct Answer :

Wind energy


Explanation :

Wind, Solar Are The cheapest sources of power generation.

Coal based thermal power plant works on which principal?

A)

Modified Rankine Cycle


B)

Threshold frequency


C)

Gibbs free energy


D)

Entropy



Correct Answer :

Modified Rankine Cycle


Explanation :

Rankine cycle is a mechanical cycle which is used to convert the pressure energy of steam into mechanical energy using turbines.A modified Rankine cycle is used to increase the efficiency of the same Rankine cycle by either reheat or using regenerative cycle.

A chemical reaction triggered by ____ transforms organic material into hydrocarbons?

A)

solar energy


B)

hydroelectric


C)

elevated temperatures


D)

decomposition



Correct Answer :

elevated temperatures

Energy resources derived from natural organic materials is called ?

A)

Geothermal energy sources


B)

Fossil fuels


C)

Biomass


D)

None of the above



Correct Answer :

Fossil fuels

Which of the following rock types would most likely be the best oil reservoir?

A)

granite


B)

shale


C)

sandstone


D)

salt



Correct Answer :

sandstone

The world has the least amount of which of the following fuel types?

A)

Oil


B)

Coal


C)

Uranium


D)

There are roughly equal amounts of each of these fuels



Correct Answer :

Oil

The percentage of total world’s precipitation, lost to the atmosphere through evaporation, is approximately?

A)

57%


B)

7%


C)

37%


D)

43%



Correct Answer :

57%

The main constituent of LPG is?

A)

Liquid methane


B)

Liquid butane


C)

Liquid hydrogen


D)

Liquid ethane



Correct Answer :

Liquid butane

Nitrogen fixation is accomplished by?

A)

Bacteria in the atmosphere


B)

Bacteria in the soil


C)

Plants


D)

Fungi



Correct Answer :

Bacteria in the soil

Pollination by Birds is known as?

A)

Autogamy


B)

Entomophilly


C)

Ornithophilly


D)

Marmacophilly



Correct Answer :

Ornithophilly


Explanation :

Ornithophily or bird pollination is the pollination of flowering plants by birds.

The agent moving the pollen, whether it is moths, bees, bats, wind or birds are called the “pollinator” and the plant providing the pollen is called the “pollenizer”. The term biotic pollination is used when pollination is aided by a pollinator. When this is done by birds, the term used is Ornithophily.

Which is an example of fossil fuel?

A)

coal


B)

methane


C)

natural gas


D)

All the above



Correct Answer :

All the above

In study of satellite imageries GIS stands for ?

A)

Geographical Information System


B)

Geographical Integrated System


C)

General Integrated System


D)

Geological Integrated system



Correct Answer :

Geographical Information System

A fuel cell, in order to produce electricity, burns?

A)

Helium


B)

Nitrogen


C)

Hydrogen


D)

Boron



Correct Answer :

Hydrogen

Blue whale is placed under?

A)

endangered


B)

critically endangered


C)

rare


D)

extinct



Correct Answer :

endangered

Latest Updates

Articles

Choose appropriate article for the given sentence:
__________ teachers had ________ late lunch as their meeting lasted longer than___ hour.

Child Development & Pedagogy

Which of the following is the most effective way to create interest for learning in a student?

The rules of presenting the content to make them easy are called_________?

The term SLD in children’s mental health denotes for?

The child will be able to use proper sentences by the age of?

Indian Politics

______is an institutional mechanism to provide representation to the states of India?

Books and Authors

Which text is not written by Kalidasa?

Indian Constitution

Which Constitutional Amendment introduced Right to Education as a Fundamental Right?

Indian History

Which animal is engraved on Harappan seals?

Indian Politics

Who is known for initiating electoral reforms in India to ensure free and fair elections?

Indian Constitution

The sequence in which the given terms are mentioned in the preamble to the Constitution of India is?

Which of the following parts of the Constitution of India provides fundamental rights ?

Books and Authors

Who among the following is the author of ‘Politics’?

Which one is the text not written by Abul Fazl?

Which King was the author of Ratnawali, Nagananda, Priyadarsika?

Fill in the blank

Fill in the blanks with the most appropriate preposition in the given sentence.
The class begins _______ 7:30 am _____ the morning.

The workers were so skilled that their _____ was quite visible even to a layman.

Articles

Choose appropriate article for the given sentence:
______ German is ___ easy language to learn for English speaking students.

Latest Job Notifications

Banking Jobs

बैंकिंग कार्मिक चयन संस्थान Institute of Banking Personnel Selection(IBPS) - 7855 पद - 29/07/2022 अंतिम तिथि

SSC Recruitment

कर्मचारी चयन आयोग (एसएससी) Staff Selection Commission (SSC) - 1411 पद - 29/07/2022 अंतिम तिथि

Jobs in Rajasthan

राजस्थान अधीनस्थ और मंत्रिस्तरीय सेवा चयन बोर्ड Rajasthan Subordinate and Ministerial Services Selection Board (RSMSSB) - 5546 पद - 22-Jul-2022 अंतिम तिथि

Railway Recruitment

उत्तर मध्य रेलवे भर्ती प्रकोष्ठ Railway Recruitment Cell(NCR) - 1659 पद - 01/08/2022 अंतिम तिथि

Jobs in West Bengal

इंडियन पोस्ट सर्विस Indian Post Service - 2357 पद - 19/08/2021 अंतिम तिथि - पश्चिम बंगाल पोस्टल सर्कल

Banking Jobs

भारतीय स्टेट बैंक State Bank of India(SBI) - 6100 पद - 26/07/2021 अंतिम तिथि - CRPD/APPR/2021-22/10

SSC Recruitment

कर्मचारी चयन आयोग Staff Selection Commission(SSC) - 25271 पद - 31/08/2021 अंतिम तिथि

Jobs in Madhya Pradesh

राष्ट्रीय स्वास्थ्य मिशन मध्य प्रदेश National Health Mission MP(NRHM) - 5215 पद - 22/06/2021 अंतिम तिथि

Jobs in Punjab

पंजाब स्टेट पावर कॉर्पोरेशन लिमिटेड Punjab State Power Corporation Limited (PSPCL) - 2632 पद - 20/06/2021 अंतिम तिथि

Jobs in Chhattisgarh

स्वास्थ्य सेवा निदेशालय, छत्तीसगढ़ Department of Health & Family Welfare, Chhattisgarh - 267 पद - 26/06/2021 अंतिम तिथि