Where Is the Crater That Caused the Mass Extinction 65

question 2

Multiple Choice

Where is the crater that caused the mass extinction 65 million years ago located?

• A) Chesapeake Bay
• B) Arizona
• C) Quebec
• D) Antarctica
• E) Yucatan Peninsula

---

Definitions:

Substitution

A chemical reaction in which an atom or group of atoms is replaced with a different atom or group of atoms in a molecule.

Specific Rotation

A measure of the degree to which a compound can rotate plane-polarized light, typically expressed in degrees and dependent on concentration, temperature, and wavelength.

Racemization

A process leading to the conversion of an optically active compound into a racemic mixture, where there is an equal proportion of left and right-handed enantiomers.

Substitution

A chemical reaction in which an atom or group of atoms in a molecule is replaced by another atom or group.