Sum of all ecosystems is classified as___________?
Sum of all ecosystems is classified as___________?
A. Aero sphere
B. Ionosphere
C. Biosphere
D. Ozonosphere
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What kind of weathering takes place on the valley side above the surface of the glacier?
What kind of weathering takes place on the valley side above the surface of the glacier?
A. Plucking
B. Abrasion
C. Chemical weathering
D. Frost shatteringWhich of the following is a substance?
Which of the following is a substance?
A. Sea water
B. Brass
C. Tape water
D. Graphite
E. SandIn chemistry, a substance refers to a matter which has specific composition and specific properties which do not change. A substance can be an element or a compound. A substance typically has a constant composition, which can not be separated by physical methods. Seawater and sand are not substances, because they have varied compositions and their components can be separated by physical methods.
The rocks formed out of layers of sediment bonded together are known as _______________?
The rocks formed out of layers of sediment bonded together are known as _______________?
A. Metamorphic rocks
B. Sedimentary rocks
C. Igneous rocks
D. All of the aboveVitamin B is found in__________?
Vitamin B is found in__________?A. Sea Foods
B. Fruits and Vegetables
C. Seeds
D. None of theseA photostat machine works on _____________?
A photostat machine works on _____________?A. electromagnetic image making
B. magnetic image making
C. thermal image making
D. electrostatic image makingWhat is the Medical term for Fever?
What is the Medical term for Fever?A. HHypothermia
B. Pyrexia
C. Hypertension
D. Thermophilia