1. The main source of water pollution is:

A. Sewage Water B. Rain Water C. Atmospheric Pollutants D. Well-Water

Answer: Option A
2. Which gas is mainly responsible for green house effect?

A. C[latex]{O}_{2}[/latex] B. [latex]{H}_{2}[/latex] C. [latex]{O}_{2}[/latex] D. water vapours

Answer: Option A
3. Cutting of trees in a forest is called:

A. Deforestation B. Aforestation C. Reforestation D. None of these

Answer: Option A
4. The sound of which intensity is regarded as the safe noise level for a city?

A. 80 dB B. 60 dB C. 120 dB D. 45 dB

Answer: Option D
5. Limnology is the study of

A. Oceans B. Minerals C. Inland Waters D. Micro Organisms in Soils

Answer: Option C
Explanation: Inland Waters covers the biological, chemical, physical, geological, and other attributes of all inland waters. The term limnology was coined by François-Alphonse Forel (1841–1912) who established the field with his studies of Lake Geneva.
6. The Santa Barbara oil spill is associated with which country?

A. Russia B. China C. Australia D. USA

Answer: Option D
Explanation: The Santa Barbara oil spill occurred in January and February 1969 in the Santa Barbara Channel, near the city of Santa Barbara in Southern California. The spill had a significant impact on marine life in the Channel, killing an estimated 3,500 sea birds,[2] as well as marine animals such as dolphins, elephant seals, and sea lions.
7. Silent Spring is an environmental science book written by ___________.

A. Rachel Carson B. Simon Kerton C. Mathew Giselda D. Carlos Lewis

Answer: Option D
Explanation: The book documented the detrimental effects on the environment—particularly on birds—of the indiscriminate use of pesticides. Silent Spring was met with fierce opposition by chemical companies, but it spurred a reversal in national pesticide policy, led to a nationwide ban on DDT for agricultural uses in USA.
8. Who is the chair of the Intergovernmental Panel on Climate Change or IPCC?

A. Ban ki Moon B. Chritine Lagarde C. Hoesung Lee D. Kim Jin Kun

Answer: Option C
Explanation: IPCC is a scientific intergovernmental body under the auspices of the United Nations. The 2007 Nobel Peace Prize was shared, in two equal parts, between the IPCC and Al Gore.
9. The United Nations Conference on Environment and Development (UNCED) or The Earth Summit was held in

A. Moscow B. Paris C. Rio de Janeiro D. Beijing

Answer: Option C
Explanation: It was a major United Nations conference held in Rio de Janeiro from 3 to 14 June 1992.In 2012, the United Nations Conference on Sustainable Development was also held in Rio, and is also commonly called Rio+20 or Rio Earth Summit 2012.
10. Who is the chair of the Intergovernmental Panel on Climate Change or IPCC?

A. Ban ki Moon B. Chritine Lagarde C. Hoesung Lee D. Kim Jin Kun

Answer: Option C
Explanation: IPCC is a scientific intergovernmental body under the auspices of the United Nations. The 2007 Nobel Peace Prize was shared, in two equal parts, between the IPCC and Al Gore

1. A molecular technique in which DNA sequences between two oligonucleotide primers can be amplified is known as

A. southern blotting B. northern blotting C. polymerase chain reaction D. DNA replication

Answer: Option C
2. How many nucleotides are there in Ss RNA molecule of picorna virus causing FMD?

A. 1000 B. 5000 C. 8000 D. 10000

Answer: Option C
3. Which of the following functional groups would make a carbon-based compound the least polar?

A. Phosphate B. Methyl C. Carboxyl D. Amino

Answer: Option B
4. The evaporation of water from leaves is called

A. transpiration B. cohesion C. tension D. pressure flow

Answer: Option A
5. Which of the following is not true about the helper plasmids?

A. These can replicate in Agrobacterium B. These help in the mediating conjugation of intermediate vectors C. These can't replicate in Agrobacterium D. All of the above

Answer: Option A
6. The tumor phenotype, which can be maintained indefinitely in tissue culture, results from the expression of genes on the

A. T-DNA B. c-DNA C. r-DNA D. m-RNA

Answer: Option A
7. The cross linkage of antigens by antibodies is known as

A. agglutination B. complement fixation C. a cross reaction D. all of these

Answer: Option A
8. pH of the fermentation medium for chlorotetracyclins is

A. 5-6 B. 6-7 C. 7-8 D. 8-9

Answer: Option A
9. λ gt 10 and λ gt 11 vectors can propagate cloned fragments up to

A. 6-7 kb B. 1-2 kb C. 40-44 kb D. 20-23 kb

Answer: Option A
10. Which of the following is used to check vortex and to improve aeration efficiency in a fermentor?

A. Impeller B. Baffles C. Sparger D. All of these

Answer: Option B

1. Which of the following is Stack structure?

A. FIFO (First In First Out) B. LIFO (Last In First Out) C. FILO (First In Last Out) D. LILO (Last In Last Out)

Answer: Option B
2. Which of the following is not a logical database structure?

A. Tree B. Network C. Chain D. Relational

Answer: Option C
3. Master slave flip-flop is also referred to as ___

A. Positive level triggered flip-flop B. Pulse triggered flip-flop C. Low level triggered flip-flop D. Edge triggered flip-flop

Answer: Option B
4. Which of the following is defined by Storage class?

A. Arrays B. Data types C. Scope and Performance D. Strings

Answer: Option C
5. DMA stands for ____

A. Direct Memory Access B. Dynamic Memory Access C. Direct Memory Allocation D. Dynamic Memory Allocation

Answer: Option A
6. A data warehouse is which of the following?

A. Contains only current data B. Contains numerous naming conventions and formats C. Organized around important subject areas D. Can be updated by the end users

Answer: Option C
7. OSI model is having how many layers?

A. Two B. Four C. Six D. Seven

Answer: Option D
8. Servers are computers that provide resources to other computers connected to a ____

A. Link B. Hub C. Network D. Loop

Answer: Option A
9. Proxy server is used for ____

A. Providing security against unauthorized users B. Processing client requests for web pages C. Provide Internet Protocol D. Processing client requests for DB access

Answer: Option B
10. Target of normalization is ____

A. Minimize the number of entities B. Minimize the number of errors C. Minimize the number of redundancy D. Maximize the number of rows

Answer: Option C

1. Which waterfalls are known as Niagara Falls of India

A. Chitrakoot Waterfalls B. Jog Waterfalls C. Nohkalikai Waterfalls D. Dudhsagar Waterfalls

Answer: Option A
2. Growth rate exceeded the target in which ve year plan

A. First five year plan B. Second five year plan C. Third five year plan D. Fourth five year plan

Answer: Option B
3. Which of the following statements regarding council of ministers is correct?

A. The Council Ministers shall be collectively responsible to the Lok Sabha B. There shall be a council of minsters with the Prime Minister as the head C. The Council of Minsters shall be individually responsible to the President D. All of These

Answer: Option D
4. On the recommendations of which committee fundamental duties were added to the Indian constitution?

A. Swaran Singh committee B. Veram committee C. Sarkaria commission D. None of the above

Answer: Option A
5. Urdu is the official language of __________.

A. Andhra Pradesh B. Arunachal Pradesh C. West Bengal D. Jammu & Kashmir

Answer: Option D
6. Which of the following is one of the characteristics of civil services in India.

A. Neutrality and Impartiality B. Temporary Political Executive nexus C. Partisan D. All of the given options

Answer: Option A
7. The number of parliamentary seats (Lok Sabha) of Haryana is.

A. 10 B. 26 C. 28 D. 48

Answer: Option A
8. Bengali is the official language of _________.

A. Uttarakhand B. Tripura C. Kerala D. Chhattisgarh

Answer: Option B
9. In which of the following matters, status of the Rajya Sabha is equal to the Lok Sabha.

A. Introduction and passage of ordinary bills B. Introduction and passage of constitutional amendment bills C. Election and Impeachment of the President D. All the Above

Answer: Option A
10. India Cooling Action Plan (ICAP) has been launched by which union ministry.

A. Ministry of New And Renewable Energy. B. Ministry of Agriculture C. Ministry of Earth Sciences D. All the Above

Answer: Option D