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
Pollutants that are introduced into the environment by human activity are called as ___________
(A) Qualitative pollutants
(B) Quantitative pollutants
(C) Anthropogenic pollutants
(D) All of Above
Basidiospores are considered to be a major source of ___________
(A) airborne allergens
(B) water borne allergens
(C) animal faeces
(D) bio-weapon
Most important effect of the moon on earth is that it___________
(A) Causes weather change
(B) Causes earthquakes
(C) Causes solar and lunar eclipse
(D) Effects tides of the ocean
The Lunar eclipse occurs when:
(A) Moon is b/w the earth and the sun
(B) Earth is b/w the sun and the moon
(C) Sun is b/w the earth and the moon
(D) Earth is at right angles to the direction of the sun and the moon
Which is the nearest star to our sun
(A) Proxima Centurai
(B) Alpha Scorpii
(C) Beta Orionis
(D) Vega
Who was the first to measure the earth’s radius
(A) Galileo
(B) Copernicus
(C) Ptolemy
(D) Eratosthenes
Which of the following planets has the smallest diameters_____
(A) Mercury
(B) Marx
(C) Pluto
(D) Venus