Sum of all ecosystems is classified as___________?
Sum of all ecosystems is classified as___________?
		A. Aero sphere
B. Ionosphere
C. Biosphere
D. Ozonosphere
Sum of all ecosystems is classified as___________?
		A. Aero sphere
B. Ionosphere
C. Biosphere
D. Ozonosphere
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 shattering
Which of the following is a substance?
		A. Sea water
B. Brass
C. Tape water
D. Graphite
E. Sand
In 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 _______________?
		A. Metamorphic rocks
B. Sedimentary rocks
C. Igneous rocks
D. All of the above
		A. Sea Foods
B. Fruits and Vegetables
C. Seeds
D. None of these
A. electromagnetic image making
B. magnetic image making
C. thermal image making
D. electrostatic image making
		A. HHypothermia
B. Pyrexia
C. Hypertension
D. Thermophilia