In Ecosystem the primary producer is
(A) Female
(B) male
(C) Plant
(D) Bacteria
What is the study of population called?
(A) Map art
(B) Human science
(C) Demography
(D) Biography
Which of the following metals is used in spacecraft to tolerate high temperatures?
(A) Fe
(B) Ti
(C) Ni
(D) Pb
The metal present in insulin is
(A) Copper
(B) Iron
(C) Zinc
(D) Magnesium
Balloons are filled with
(A) Helium
(B) Argon
(C) Nitrogen
(D) Oxygen
How much carbon does steel contain?
(A) 0.1% – 1.5%
(B) 7 – 10%
(C) 10 – 50%
(D) Zero
The ligthest metal is –
(A) Li
(B) Fe
(C) Cu
(D) Ag
Elements of d-block are called–
(A) Transition element
(B) Transuranic elements
(C) Metals
(D) Metalloids
Which one among the following nontoxic gases helps in formation of enzymes which ripen fruit?
(A) Acetylene
(B) Ethane
(C) Methane
(D) Carbon dioxide
If the velocity of a body is doubled its kinetic energy
(A) Gets doubled
(B) Becomes half
(C) Does not change
(D) Becomes 4 times
Get the Examsbook Prep App Today