Question 1

A small body floating in space is called a&#10;A) fireball.&#10;B) meteoroid.&#10;C) meteor.&#10;D) meteorite.

Accepted Answer

A meteoroid is a small body floating in space. When it enters the Earth's atmosphere, it becomes a meteor (shooting star), and if it survives the fall to reach the Earth's surface, it is called a meteorite. A fireball is a particularly bright meteor.

Question 2

Most meteorites that are found are&#10;A) achondrites.&#10;B) chondrites.&#10;C) stony irons.&#10;D) irons.

Accepted Answer

Chondrites are the most common type of meteorites found. They are stony meteorites that have not been modified due to melting or differentiation of the parent body, and they make up about 85% to 86% of all falls.

Question 3

The crater in Arizona is called&#10;A) Tunguska&#10;B) Wolf Creek&#10;C) Barringer&#10;D) Manicouagan

Accepted Answer

The crater in Arizona is known as the Barringer Crater, named after Daniel Barringer who was the first to suggest that it was produced by a meteorite impact.

Question 4

Small chunks or grains in meteors are called&#10;A) organic bumps.&#10;B) meteor bumps.&#10;C) Chondrules.&#10;D) meteorites.

Accepted Answer

Chondrules are small, round particles found in some stony meteorites, known as chondrites. They are among the oldest and most primitive materials in the solar system, providing insights into its early history.

Question 5

Carbonaceous Chondrites contain a larger amount of _____.

Accepted Answer

The answer of Carbonaceous Chondrites contain a larger amount of...

Question 6

The Chicxulub crater may be a remnant of an impact that led to the extinction of the _______________ .

Accepted Answer

The answer of The Chicxulub crater may be a remnant...

Question 7

Tunguska event occurred in Arizona.

Accepted Answer

The Tunguska event occurred in Siberia, Russia, in 1908.

Question 8

The mass extinction that occurred 65 million years ago was caused by a 100 km body.

Accepted Answer

The mass extinction that occurred 65 million years ago, which is often associated with the demise of the dinosaurs, is widely believed to have been caused by an asteroid impact. However, the estimated size of the asteroid is about 10 to 15 kilometers in diameter, not 100 kilometers.

Deck 50: Impacts on Earth