Which two animals are able to generate internal heat to maintain their body temperature in a cold environment? 1. Parrot 2. Snake 3. Frog 4. Dog 5. Crocodile

The answer is c water is the solvent and salt is the solvent

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on

The  answer is b since it all happens under ground