Everyday Science MCQs

5120 MCQs  (Page 63 of 512)

Basidiospores are considered to be a major source of ___________?
A. Airborne allergens
B. Water borne allergens
C. Animal faeces
D. Bio-weapon
What is the mass of the Sun?
A. 1.5×10 power 30 kg
B. 1.98×10 power 30 kg
C. 4.5×10 power 30 kg
D. 8×10 power 30 kg
The phases of the moon are partially the result of the____________?
A.  changes in the shape of the moon
B.  revolution of the moon around the earth
C. variations in the moon’s gravitation
D.  variations in the speed of rotation of the moon
‘Black holes’ refers to_______________?
A. Holes occurring in heavenly bodies
B. Bright spots on the sun
C. Collapsing object of high density
D. Collapsing object of low density
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
Spring tides occur on new moon and full moon days because on these days_____________?
A. Sun, moon and earth are in a straight line
B. Sun and earth are at right angles
C. Sun and moon are at right angles
D. Earth and moon are at right angles