Which of the following metals is used in spacecraft to tolerate high temperatures?
(A) Fe
(B) Ti
(C) Ni
(D) Pb
What is the study of population called?
(A) Map art
(B) Human science
(C) Demography
(D) Biography
In Ecosystem the primary producer is
(A) Female
(B) male
(C) Plant
(D) Bacteria
The branch of study dealing with old age and aging is known as _.
(A) Gerontology
(B) Teratology
(C) Oncology
(D) Ornithology
From whom do teeth and bones gain strength and firmness?
(A) Calcium
(B) Fluorine
(C) Chlorine
(D) Sodium
What do AIDS viruses destroy?
(A) Lymphocyte
(B) Monocyte
(C) Neutrophils
(D) Basophils
Which of the following instruments measures electromagnetic radiation?
(A) Pyrheliometer
(B) Cathetometer
(C) Bolometer
(D) Phenograph
How is the relative humidity expressed?
(A) gram
(B) Kilogram
(C) Percent
(D) Ratio
What is the average density of the earth?
(A)
(B)
(C)
(D)
Earth’s escape velocity is –
(A) 15.0 km / sec
(B) 21.0 km / sec
(C) 7.0 km / sec
(D) 11.2 km / sec
Get the Examsbook Prep App Today