Everyday Science MCQs

5120 MCQs  (Page 440 of 512)

Hydrology is the study of ___________?
A. Height
B. High temperature
C. High mountain
D. Rainfall
Erythrocyte is another name for a ___________?
A. White blood cells
B. Platelet
C. Red blood cells
D. Plasma
Why the needle of iron swims on water surface when it is kept gently ?
A. It will remain under the water, when it will displace more water than its weight
B. The density of needle is less than that of water
C. Due to surface tension
D. Due to its shape
Rain drops fall from great height Which among the following statements is true regarding it?
A. They fall with that ultimate velocity, which are different for different droplets
B. They fall with same ultimate velocity
C. Their velocity increases and they fall with different velocity on the earth
D. Their velocity increases and they fall with same velocity on the earth
Where does the oxygen that keeps us alive come from?
A. Carbon dioxide
B. Carbonates absorbed from soil
C. Oxides of minerals
D. Water