GK General Science Questions and Answers for Competitive Exams

Which of the following environmental problems is called as 'Creeping Death'?
(A) Soil erosion
(B) Deforestation
(C) Population growth
(D) Water pollution
Correct Answer : A
Explanation :
Soil erosion which is also called the 'creeping death of the soil' is a global problem (Tripathi and Singh, 1993). India is facing soil erosion problems in sectors such as reservoir siltation, soil-degradation and in agricultural sectors mainly.
World Environment Day is celebrated on -
(A) 5th February
(B) 15th June
(C) 5th February
(D) 5th June
Correct Answer : D
In which category are bacteria included?
(A) producer
(B) prokaryotes
(C) primary consumer
(D) Secondary consumer
Correct Answer : B
Explanation :
Once regarded as plants constituting the class Schizomycetes ("fission fungi"), bacteria are now classified as prokaryotes. Unlike cells of animals and other eukaryotes, bacterial cells do not contain a nucleus and rarely harbour membrane-bound organelles.
Who connects the biotic and abiotic components of an ecosystem?
(A) producer
(B) organic matter
(C) Inorganic substances
(D) Consumer
Correct Answer : C
Explanation :
In conclusion, ecosystems have a complex set of interactions that happen between the biotic and abiotic components. The components of an ecosystem are linked to each other through the energy flows and nutrient cycles.
Who has been made to help the countries most affected by climate change?
(A) Green Climate Fund
(B) Climate Relief Fund
(C) Green Bank
(D) World Green Fund
Correct Answer : A
Explanation :
The 23rd Conference of Parties (COP) was organized in the German city of Bonn with the aim of implementing the global agreement to control climate change. going. COP-23 will be chaired by Fiji's Prime Minister Frank Bainimarama. It is estimated that a large number of people from all over the world will participate in this conference. But despite all the preparations, there is not the same enthusiasm for COP-23 to be held in Bonn as there was in the Paris conference.
Which of the following animal crawls for moving one place to another?
(A) Cat
(B) Dog
(C) Earthworm
(D) Hare
Correct Answer : C
Explanation :
Reptile. The Latin word “reptile” refers to a creature that crawls. Among reptiles are lizards, snakes, alligators, turtles, worm-lizards and crocodiles.
What is the objective behind including poems and stories in the textbooks of EVS?
(A) Encourage imaginative & creative ability of students
(B) Have a change in routine content
(C) Complete up the textbooks
(D) Fulfill demand of poets and storytellers
Correct Answer : A
Explanation :
Benefits of Poems and Storytelling in EVS Class: Encourage the use of imagination, creativity, active participation, and listening skills. Increase children's willingness to communicate thoughts and feelings.
There is a species ‘A’ of plants that grow in a huge number but is found only in the ‘B’ part of India in the whole world. Which type of species is it?
(A) Endangered
(B) Abundant
(C) Exotic
(D) Endemic
Correct Answer : D
Explanation :
Endemic species are those that exist discovered in just one region and nowhere else around the globe.
Khejri trees are mainly found in ______
(A) hot and humid conditions
(B) cool and dry conditions
(C) moderate conditions
(D) hot and dry conditions
Correct Answer : D
Explanation :
The Khejri trees are mainly found in hot and dry conditions. It is found in arid regions of Western and southern Asia including Oman, Saudi Arabia, UAE, Bahrain, Afghanistan, Iran, India and Pakistan. In India it is mainly found in Rajasthan and It is the state tree of Rajasthan.
CNG stands for –
(A) Clean natural gas
(B) carbonized natural gas
(C) compressed natural gas
(D) none of these
Correct Answer : C
Explanation :
CNG stands for Compressed Natural Gas. It is considered to be a better fuel because it is less polluting.

