Quizzes & Surveys
Welcome to your UPSC PRELIMS 2021 (SET-D)
Water can dissolve more substances than any other liquid because
It is dipolar in nature
It is a good conductor of heat
It has high value of specific heat
It is an oxide of hydrogen
With reference to street-lighting, how do sodium lamps differ from LED lamps?
Sodium lamps produce light in 360 degrees but it is not so in the case of LED lamps
As street-lights, sodium lamps have longer life span than LED lamps
The spectrum of visible light from sodium lamps is almost monochromatic while LED lamps offer signifi cant colour advantages in street-lighting.
The term ‘ACE2’ is talked about in the context of
genes introduced in the genetically modified plants
development of India’s own satellite navigation system
radio collars for wildlife tracking
spread of viral diseases
Bisphenol A (BPA), a cause of concern, is a structural/key component in the manufacture of which of the following kinds of plastics?
‘Triclosan’, considered harmful when exposed to high levels for a long time, is most likely present in which of the following?
Reused plastic containers
‘Right to Privacy’ is protected under which Article of the Constitution of India?
Bollgard I and Bollgard II technologies are mentioned in the context of
clonal propagation of crop plants
developing genetically modified crop plants
production of plant growth substances
production of biofertilizers