Which of the following best characterizes a covalent bond?
a. occurs when elements have opposite electrical charge
b. occurs when elements have very different electronegativity values
c. occurs when atoms have similar tendencies to attract electrons and share electrons between them
d. occurs when atoms are of the same size

How do adaptation affect a species?

Acar company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies' bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies' bodies continue to move forward even though the car stopped? a. the friction opposing their bodies' movement keeps them in motion. b. the inertia of their bodies keeps them in motion. c. the forward acceleration of the car keeps them in motion. d. the gravity pulling on the car keeps them in motion.

Mineral rich water heated by newly found oceanic crust escapes through cracks in the ocean floor called