791. Some riven and canals have locks across them in order to
A. collect taxes
B. ensure safety
C. control the level of water
D. load or unload freight
✅ The correct answer is option C.
UPSC
792. A fragment of solid matter which enters the upper atmosphere from outer space almost disintegrating before reaching the earth’s surface is
A. meteorite
B. asteroid
C. meteor
D. comet
✅ The correct answer is option C.
793. Inland waterways have many disadvantages. Among them the most common is
A. presence of water falls and rapids
B. seasonal freezing and drying up of rivers
C. international controls on traffic
D. fluctuating volume of traffic
✅ The correct answer is option B.
794. Plains formed by the deposits brought by glacier are
A. lacustrine plains
B. flood plains
C. drift plains
D. coastal plains
✅ The correct answer is option C.
795. Doldrum is an area of ___.
A. low rainfall
B. low temperature
C. low pressure
D. high winds
✅ The correct answer is option C.
796. Schist is the metamorphic equivalent of____.
A. Granite
B. Basalt
C. Shale
D. Dolerite
✅ The correct answer is option C.
797. Fold mountains are formed due to forces born out of
A. tension
B. compression
C. expansion
D. volcanoes
✅ The correct answer is option B.
798. Coastline formed by a drowned river mouth is a
A. Fjord
B. Dalmatian
C. Ria
D. Haff
✅ The correct answer is option C.
799. An important gas in the atmosphere that absorbs sun’s ultraviolet rays is
A. Oxygen
B. Nitrogen
C. Ozone
D. Hydrogen
✅ The correct answer is option C.
800. Fjords abound the coast of
A. Sweden
B. France
C. Norway
D. Germany
✅ The correct answer is option C.