Which type of mirror is used by dentists to see the larger image of the patient's teeth?
(A) Flat
(B) Concave
(C) Flat
(D) Convex
The Nitrogen fixing legume—bacteria is—
(A) Rhodospirillum
(B) Plasmodium
(C) Anapector
(D) Rhizobium
Which planet spins the fastest?
(A) Mars
(B) Jupiter
(C) Mercury
(D) Venus
Bacteria is classified as____.
(A) Eukaryote organism
(B) Prokaryote organism
(C) Both a and b
(D) None of a and b
Which of the following represents a correct food chain?
(A) Frog → eagle → insects → grass → snake
(B) Grass → insects → frog → snake → eagle
(C) Grass→ frog → insects → eagle→ snake
(D) Frog → snake → insects → grass → eagle
Why do colors appear in soap bubbles due to the incident of light?
(A) due to scattering
(B) Due to interference
(C) Due to deflection
(D) Due to polarization
Produces moving charge-
(A) electric field only
(B) Magnetic field only
(C) both magnetic field and electric field
(D) none of these
who invented dynamite?
(A) Alfred Nobel
(B) Thomas Alva Edison
(C) Galileo Galilei
(D) Charles Darwin
From which part of the plant turmeric is obtained?
(A) stem
(B) root
(C) flowers
(D) None of these
In what form is phosphate found in bones?
(A) vitamin
(B) calcium
(C) Protein
(D) Energy
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