Acid deposition causes ______________________?
Acid deposition causes ______________________?
A. the greenhouse effect to lessen
B. lakes and forests to die
C. acid indigestion in humans
D. all the above are correct
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According to Einsteins general theory of relativity the universe:________________?
According to Einsteins general theory of relativity the universe:________________?A. Must be expanding
B. Must be contracting
C. Must be either expanding or contracting
D. Must be neither expanding nor contractingJapan is called ‘Land of the rising sun’ because:
Japan is called ‘Land of the rising sun’ because:
A. Sun rises there as soon as it sets
B. Sun always remains in the eastern past of the sky throughout the day in Japan
C. Japan being the Eastern most country in the world, it has the earliest sunrise
D. The rays of the sun get reflected from the waters of the sea and make the sunrise beautiful in JapanOuter layer of the human skin is called __________?
Outer layer of the human skin is called __________?A. Hypodermis
B. Dermis
C. Hemidermis
D. EpidermisDental mirror is what type of a mirror?
Dental mirror is what type of a mirror?A. Convex mirror
B. Concave mirror
C. Plane mirror
D. none of theseMouth mirror used by a dentist is a concave mirror, to get a magnified reflection of the mouth, without inverting the reflection image. A concave mirror is used to form virtual , upright and magnified images, when the object is positioned within focal point and pole of mirror. This property of concave mirror makes it useful for dentists to view magnified images of tooth and cavity etc.
Stars in the sky appear to twinkle due to _________?
Stars in the sky appear to twinkle due to _________?A. a series of refractions
B. a series of reflections
C. a surface tension phenomenon
D. multiple diminishing brightnessSoil acidity is corrected by?
Soil acidity is corrected by?A. Proper irrigation
B. Adding sodium hydroxide
C. Liming
D. Application of fertilizers