The correct option is (c).
Explanation
Meteoroids are small rocky or metallic bodies in outer space. They are significantly smaller than asteroids and range in size from small grains to one-meter-wide objects. Their interaction with Earth's atmosphere results in specific phenomena known as meteors.
Statement-wise Analysis:
- Statement 1 is Incorrect. Meteoroids are not large gaseous bodies; they are small pieces of rocks or metals that move around the Sun. Large gaseous bodies typically refer to gas giant planets (like Jupiter or Saturn) or stars.
- Statement 2 is Correct. When meteoroids enter the Earth's atmosphere, they travel at high speeds. The resistance offered by the atmosphere creates friction, which generates immense heat. This heat typically causes the meteoroid to burn up completely before it reaches the Earth's surface.
- Statement 3 is Correct. The heat generated by friction with the air causes the meteoroid to glow and the surrounding air to ionize. This results in a visible streak or flash of light, commonly referred to as a "shooting star" or meteor.
Key Takeaway:
A Meteoroid is the object in space; a Meteor is the flash of light observed when it burns in the atmosphere; and a Meteorite is the remnant that survives the fall and strikes the ground.