The color of sky is blue because ____.
A. Has actual blue cover
B. Reflects blue light
C. Transmits blue light
D. Scatters blue
All the matters are made up of ____.
A. Air
B. Atoms
C. Vibrations
D. Water
Which are called building blocks of matter?
A. Molecules
B. Protons
C. Atoms
D. Elements
An atom has following sub particles _____.
A. Protons, nucleus & electrons
B. Protons, Neutrons & Electrons
C. Protons, Nucleus & Elements.
D. Elements, Nucleus & Protons
Chemistry deals with _____.?
A. Internal structural changes in matter
B. Composition and properties of matter
C. Properties of matter
D. Composition of matter
Which is most common disease?
A. Headache
B. Leprosy
C. Dental
D. Migraine
Which is the family of orange?
A. Malvaceae
B. Rotaceae
C. Rutaceae
D. Composite
The light of moon reaches to Earth within ______.
A. 1.3 seconds
B. 0.3 seconds
C. 3.3 seconds
D. 2.3 seconds
Who was developer of telegraph code?
A. Andre Ampere
B. Jean Fourier
C. Joseph Henry
D. Samuel Morse
Pea plant has _____ chromosomes.
A. 14
B. 12
C. 48
D. 46
The study of glands is known as ______.
A. Endocrinology
B. Cardiology
C. Entomology
D. None of these