Answer:
(a) (i) The Tata Energy Research
Institute has predicated acute water shortage in the summer.
(ii) The water table in urban
areas is decreasing with poor infrastructure and increased population leading to
serious water crisis in Delhi.
(iii) Delhi receives water
supply from surface flow and groundwater. The surface sources include water supply
from rivers especially Yamuna.
(iv) According to the study, the
groundwater below twenty to fifty metres from the ground is saline and unfitfor
consumption.
(b) (i) The word means
uncontrollable.
(ii) The synonym is breaking.
(iii) The opposite is ancient.
(iv) The word is
"verge".
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