Q: You are presented with the quiz "What product is likely to contain solvents that are harmful to living things?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "poison causes harm to living things" and "most disinfectants contain organic solvents that are flammable and poisonous". So, what's the best answer to the question?

OPTIONS:
- cigarettes
- Pesticides
- chlorofluorocarbons
- solid, liquid, gas
- baking soda
- disinfectants
- hydrogen peroxide
- vinegar

A: disinfectants

Q: You are presented with the quiz "What survives in a dry environment?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "conserving water can be used for survival in a dry environment" and "also, camels conserve their water". So, what's the best answer to the question?

OPTIONS:
- bamboo
- organisms
- animals
- camels
- whales
- dolphins
- grass
- fish

A: camels

Q: You are presented with the quiz "What protects the body from harmful substances?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "skin is used for protecting the body from harmful substances" and "skin is a protective organ". So, what's the best answer to the question?

OPTIONS:
- food
- organs
- toughness
- viruses
- fur
- Collagen
- bacteria
- sweating

A: organs

Q: You are presented with the quiz "Invertebrates are animals that lack a what?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "invertebrates are animals that lack a vertebral column, or backbone" and "all of the vertebral bodies act as a support column to hold up the spine". So, what's the best answer to the question?

OPTIONS:
- Chlorophyll
- Epidermis
- pair of legs
- small bones
- cartilage
- an organism's body
- support column
- epidermal

A:
support column