In how many days pluto revolves around the sun _____?
A. 88 years
B. 248 years
C. 12 years
D. 84 years
A. 88 years
B. 248 years
C. 12 years
D. 84 years
When a star becomes a singularity and has zero volume and infinite density, it is called_______________?
A. White dwarf
B. Blue giant
C. Wolf-Raynet star
D. Black hole
The atmospheric greenhouse effect is produced mainly by the __________________?
A. Absorption and re-emission of visible light by the atmosphere
B. Absorption and re-emission of ultraviolet radiation by the atmosphere
C. Absorption and re-emission of infrared radiation by the atmosphere
D. Absorption and re-emission of visible light by clouds
E. Absorption and re-emission of visible light by the ground
A. Mercury
B. Venus
C. Mars
D. Jupiter
The damage to the_________nerve could result in the defect of the eye movement:
A. Optic
B. Trigeminal
C. Abducens
D. none
A. Saturn
B. Mars
C. Neptune
D. Jupiter
Active asteroid discovered near Jupiters Orbit for the first time in billion years. The Jupiter Trojan asteroids orbit the Sun in two huge swarms, one swarm orbiting ahead of the planet, where 2019 LD2 is present, and the other swarm orbiting behind it.
A. 02
B. 03
C. 04
D. 05
In humans, other mammals, and birds, the heart is divided into four chambers: upper left and right atria and lower left and right ventricles. Commonly the right atrium and ventricle are referred together as the right heart and their left counterparts as the left heart.