GENERAL SCIENCE BIOLOGY ONE LINERS FOR TNPSC UPSC SSC SET 074

GENERAL SCIENCE BIOLOGY ONE LINERS FOR TNPSC UPSC SSC SET 074

 

731). Which one of the following is a green house gas?

A). oxygen

B). nitrogen

C). carbon dioxide

D). ozone

Answer: carbon dioxide

    

732). The tallest living tree is

A). Eucalyptus

B). palm tree

C). Sequoia

D). Tree fem

Answer: Sequoia

    

733). Which one the following plants is biennial?

A). banana

B). pineapple

C). jack fruit

D). carrot

Answer: carrot

734). Sea weeds are an important source of

A). iron

B). chlorine

C). bromine

D). iodine

Answer: iodine

    

735). Polio is caused by

A). bacterium

B). fungus

C). virus

D). insect

Answer: virus

736). Ozone as such

A). protects the earth from ultraviolet sunrays

B). is catalyst in a number of chemical reactions

C). is utilised in green house farming

D). is a gas which is hazardous when inhaled

Answer: protects the earth from ultraviolet sunrays

    

737). The climatic changes, soil erosion and decreased rainfall is due to

A). eco system changes

B). deforestation

C). global warming

D). green house effect

Answer: deforestation

    

738). AGMARK is

A). Co operative society

B). Regulated market

C). Farmers co-operative

D). A quality assurance for agricultural products

Answer: A quality assurance for agricultural products

739). Refrigeration is a process which

A). kills bacteria

B). slows down the bacterial growth

C). inactivates the bacteria

D). plasmolyses the bacteria

Answer: slows down the bacterial growth

    

740). The blue green algae are

A). photoheterotrophs

B). photoautotrophs

C). chemoautotrophs

D). chemoheterotrophs

Answer: photoautotrophs