Question

a meteoroid is a small piece of rock or metal that has broken off a larger object. meteoroids can come from asteroids, comets, moons, or planets. most meteoroids are smaller than a grain of sand and irregular in shape. when a meteoroid or small asteroid enters earths atmosphere, it heats up as it collides with air molecules. as it falls toward earth, it becomes a glowing streak or fireball called a meteor. meteors are also called shooting stars. sometimes, a meteor falls without completely burning up or exploding. the remaining rock is called a meteorite. meteorites may have small pits, and some contain crystals. most meteorites found on earth are less than 1 meter in diameter, though some as large as 3 meters have been discovered. regardless of size, most meteorites are found in remote locations like deserts or ice sheets. some meteorites have even been found on mars and the moon! select the true statements about meteoroids, meteors, and meteorites in the solar system. most meteorites found on earth are less than 1 meter in diameter. many meteorites are covered in small pits, and some even contain crystals. meteoroids are usually rounded or nearly spherical in shape. meteors cool down as they fall through earths atmosphere.

Explanation:

1. For "Most meteorites found on Earth are less than 1 meter in diameter": The text states "Most meteorites found on Earth are less than 1 meter in diameter", so this is true.
2. For "Many meteorites are covered in small pits, and some even contain crystals": The text says "Meteorites may have small pits, and some contain crystals", so this is true.
3. For "Meteoroids are usually rounded or nearly spherical in shape": The text says "Most meteoroids are... irregular in shape", so this is false.
4. For "Meteors cool down as they fall through Earth's atmosphere": The text says "When a meteoroid... enters Earth's atmosphere, it heats up... becomes a meteor", so meteors heat up, not cool down, so this is false.

Answer:

• Most meteorites found on Earth are less than 1 meter in diameter.
• Many meteorites are covered in small pits, and some even contain crystals.