SOLAR SYSTEM

UNIVERSE

ASTEROIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
It is considered harmless even though they can be observed from Earth.
A
Comets
B
Meteors
C
Asteroids
D
None of the above
Explanation: 

Detailed explanation-1: -Answer. Answer: A Meteor is considered harmless even though it can be viewed from earth at times.

Detailed explanation-2: -When meteoroids enter Earth’s atmosphere (or that of another planet, like Mars) at high speed and burn up, the fireballs or “shooting stars” are called meteors. When a meteoroid survives a trip through the atmosphere and hits the ground, it’s called a meteorite.

Detailed explanation-3: -A comet is a ball of ice and dust that obits the Sun. A meteoroid is a small piece of an asteroid or a comet. A meteor is a streak of light in the sky that appears when a meteoroid burns up upon entering Earth’s atmosphere. A meteorite is a meteoroid that does not burn completely up but reaches the Earth’s surface.

Detailed explanation-4: -Asteroids with a 1 km (0.62 mi) diameter strike Earth every 500, 000 years on average. Large collisions – with 5 km (3 mi) objects – happen approximately once every twenty million years.

There is 1 question to complete.