1. Your cat or dog's bladder is smaller than a human's bladder.
   Your cat or dog's bladder is larger than a human's bladder.
2. Cat and dog's don't need to relieve themselves as frequently as humans.

Your cat or dog's bladder is smaller than yours, and your pet may need to relive itself more frequently than you. <a href="http://animals.howstuffworks.com/pets/pet-travel/walk-pet-on-car-trip.htm">How often should I stop to walk my pet on a long car trip?</a>

1. Every thirty minutes
   Every two hours
2. Every five hours

To prevent pet accidents or discomfort on a road trip, experts suggest you stop every two hours to let your pet walk around and relieve itself. <a href="http://animals.howstuffworks.com/pets/pet-travel/walk-pet-on-car-trip.htm">How often should I stop to walk my pet on a long car trip?</a>

1. It is illegal to let your pet relieve itself at an interstate rest stop.
   Many interstate rest stops feature specific areas for pets to relieve themselves.
2. None of the above

Many interstate rest stops feature designated areas for pets to relieve themselves. <a href="http://animals.howstuffworks.com/pets/pet-travel/walk-pet-on-car-trip.htm">How often should I stop to walk my pet on a long car trip?</a>

1. If you leave it, you could be breaking local laws.
   If you leave it, it is very inconsiderate for other travelers.
2. All of the above

Regardless of where you stop, be sure to collect your pet's poop and throw it away in a garbage can. You may be breaking local laws if you don't, and it's inconsiderate to leave behind such an unpleasant gift for other travelers. <a href="http://animals.howstuffworks.com/pets/pet-travel/walk-pet-on-car-trip.htm">How often should I stop to walk my pet on a long car trip?</a>

1. a good opportunity to feed your pet
   a good opportunity to give your pet water
2. all of the above

Rest stops also provide a chance to feed and water your pet. Give it just a little food and water during breaks, however. You don't want your pet to fill up and become uncomfortable between rest stops. <a href="http://animals.howstuffworks.com/pets/pet-travel/walk-pet-on-car-trip.htm">How often should I stop to walk my pet on a long car trip?</a>

1. Frequently feeding and watering your pet in small amounts helps prevent car sickness.
   Feeding and watering your pet during a long road trip is a bad idea because it promotes car sickness.
2. Your should feed your pet one big meal right before a long road trip.
   None of the above.

Frequently feeding and watering in small amounts can also help prevent car sickness, especially in pets that aren't veteran road trippers. <a href="http://animals.howstuffworks.com/pets/pet-travel/walk-pet-on-car-trip.htm">How often should I stop to walk my pet on a long car trip?</a>

1. Let your pet stretch its legs.
   Let you pet burn off some energy.
2. Let you pet explore its surroundings (with a leash).
   All of the above.

You should also take the time to play with your pet during rest stops to help it burn off a little energy and have some fun. Tiring your dog or cat out will make the time between stops more enjoyable for both of you. <a href="http://animals.howstuffworks.com/pets/pet-travel/walk-pet-on-car-trip.htm">How often should I stop to walk my pet on a long car trip?</a>

1. Only dogs should be placed on a leash at rest stops.
   Only cats should be placed on a leash at rest stops.
2. Both cats and dogs should be placed on a leash at rest stops.
   None of the above.

All pets should be placed on a leash when at a rest stop to ensure everyone's safety.<a href="http://animals.howstuffworks.com/pets/pet-travel/walk-pet-on-car-trip.htm">How often should I stop to walk my pet on a long car trip?</a>

1. During a road trip
   Long before a road trip
2. Never

There are few sights that can cause a deeper sinking feeling than watching your pet sprint into the woods along a highway in a state halfway across the country from your home. If you're bringing your cat along, train it on a leash long before you head out on the open road. A car trip is no place to begin leash training. <a href="http://animals.howstuffworks.com/pets/pet-travel/walk-pet-on-car-trip.htm">How often should I stop to walk my pet on a long car trip?</a>

1. The Humane Society of the United States
   The Anti-Cruelty Foundation
2. All of the above

The Humane Society of the United States (HSUS) recommends microchipping your pet, although it points out that the technology required to read some chips isn't always up to date. The best combination to keep your pet safe and increase its chances of being returned to you if it is lost is a microchip and up-to-date identification tags on a sturdy collar. <a href="http://animals.howstuffworks.com/pets/pet-travel/walk-pet-on-car-trip.htm">How often should I stop to walk my pet on a long car trip?</a>