Constellations referred to as zodiac, are__________?
Constellations referred to as zodiac, are__________?
A. Imaginary regions that encompass the path of the planets
B. Signs of Roman gods
C. A group of stars
D. None of these
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Outer layer of the human skin is called __________?
Outer layer of the human skin is called __________?A. Hypodermis
B. Dermis
C. Hemidermis
D. EpidermisWhat are the three subatomic particles of an atom?
What are the three subatomic particles of an atom?
A. Protons,Neutrons & Electrons
B. Protons,Nucleus & Electrons
C. Protons,Nucleus & Elements.
D. Elements,Nucleus & ProtonsAll of these are benefits of bacteria except ______?
All of these are benefits of bacteria except ______?A. Decomposition
B. Oxygen Production
C. Nitrogen Fixation
D. None of theseBasidiospores are considered to be a major source of ___________?
Basidiospores are considered to be a major source of ___________?
A. airborne allergens
B. water borne allergens
C. animal faeces
D. bio-weaponSleeping sickness in the natives of Africa is caused by________?
Sleeg sickness in the natives of Africa is caused by________?A. Trichomonas
B. Giardia
C. Leishmania
D. TrypanosomaAfrican Trypanosomiasis, also known as “sleeg sickness,” is caused by microscopic parasites of the species Trypanosoma brucei. It is transmitted by the tsetse fly (Glossina species), which is found only in rural Africa.
The distance between the optical centre of a convex lens and its principal focus is called its_______?
The distance between the optical centre of a convex lens and its principal focus is called its_______?A. Focal Length
B. Radius of Curvature
C. Power
D. MagnificationThe distance between the optical centre and principal focus of a lens is called focal length. Focal length of a lens depends on the refractive index of the glass and its curvature.