Related Questions

’Harm watch, harm catch' প্রবাদটির অর্থ কী?
A অতি লোভে তাঁতি নষ্ট।
B ভয় কররে ভয়, আপনি এসে পড়ে
C অবলার মুখেই বল।
D অনাভাস্যের ফোঁটা চড়চড়।
A considerable part of the harmful ultraviolet radiation of the sum does not reach the earth surface, because of the fact that, there is a layer of __________ high above earth's atmosphere, which absorbs it.
A Hydrogen
B Carbon dioxide
C Ozone
D None of these
The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is
A helium
B ozone
C oxygen
D methane
Ultraviolet radiation striking the earth is due to the depletion of
A Carbon monoxide
B Carbon dioxide
C Ozone
D Oxygen
A 'body' which allows the short wavelength incoming solar radiation to enter in, but does not allow long wave length outgoing infra red radiation to escape out is called the
A Global warming
B Green house
C Atmospheric effect
D Ionosphere
Which of the following is the most lethal water pollutant?
A Phenol and cynide
B Chlorine
C Alkalis
D Suspended solids
Which is the most lethal weapon ?
A Atom (fusion) bomb
B Hydrogen bomb
C Cobalt bomb
D Neutron bomb
Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes
A Paralysis of muscles & loss of appetite
B Nervous depression
C Gastritis & diarrhea
D All of the above
Find out the opposite word. LETHAL
A Safe
B Playful
C Virulent
D Forgiving
The meaning of " LETHAL' is:
A lasting
B deadly
C nomina
D enchanting

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