Rock Cycle
Which two gases are most responsible for greenhouse effect ?
Water vapour
Carbon dioxide
Argon
Both a and b
Both a and b
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Himalaya is formed byA. Convergent plates
B. Divergent plate boundary
C. Transform fault boundary
D. Hydrological cycle
Plates move away from each other, in the
A. Transform fault boundary
B. Convergent plate boundary
C. Divergent plate boundary
D. Tectonic plates
In ocean, carbon is usually in form of:
A. Bicarbonates ions
B. Carbon dioxide
C. Calcium
D. Phosphorous
In tectonic cycle, creation and destruction of solid outer layer, known as
A. Lithosphere
B. Crust
C. Core
D. Mantle
What does free nitrogen make 80% of earth ?
A. Lithosphere
B. Atmosphere
C. Mantle
D. Core
How much thicker is lithosphere ?
A. 100km
B. 120km
C. 110km
D. 130km
Where does divergent plate boundary occur?
A. Seafloor
B. Ocean ridges
C. Basins
D. Himalayas
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