The final phase of a star’s evolution is determined by the star’s:
The final phase of a star’s evolution is determined by the star’s:
A. Age
B. Gravitational pull
C. Density
D. Mass
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The sun is made up of 99.9% of ________________ and ______________?
The sun is made up of 99.9% of ________________ and ______________?
A. Oxygen and Hydrogen
B. Hydrogen and Sulfur
C. Carbon and Silicon
D. Hydrogen and HeliumA shooting star is _________?
A shooting star is _________?A. Sun
B. A comet
C. A meteor
D. An steroidThe group of minerals chemically containing hydrocarbons is_______?
The group of minerals chemically containing hydrocarbons is_______?A. Silicate group
B. Organic group
C. Oxide group
D. Hydride groupIt is observed that the total pressure exerted by air on the man of average size is around 14.7 lb wt. per square inch. But the man feels quite comfortable,. It is because of__________?
It is observed that the total pressure exerted by air on the man of average size is around 14.7 lb wt. per square inch. But the man feels quite comfortable,. It is because of__________?A. An equal and opposite pressure acts from inside
B. of the height of a man
C. of gravity
D. Earth pulls the man upward
E. None of theseWhich part of the Camera is analogue to the retina in the human eye?
Which part of the Camera is analogue to the retina in the human eye?
A. Lens
B. Film
C. Aperture
D. ShutterWhich of the following is the most toxic gas?
Which of the following is the most toxic gas?A. Carbon dioxide
B. Carbon monoxide
C. Nitrogen
D. Hydrogen