Q: You are presented with the quiz "Viruses often can spread bacteria through what?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "viruses often infect bacteria" and "infected birds spread the bacteria in their droppings". So, what's the best answer to the question? | OPTIONS:
- the skin
- microscopes
- contamination
- covering
- washing
- alveoli
- droppings
- coating
A: droppings

Q: You are presented with the quiz "What do plants require to grow?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "aplant requires photosynthesis to grow" and "photosynthesis requires the chlorophyll molecule". So, what's the best answer to the question? | OPTIONS:
- rays or beams
- aqueous solution
- Energy.
- nutrients
- Chlorophyll
- energy
- sunlight
- direct energy
A: Chlorophyll

Q: You are presented with the quiz "What decomposes beech?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "fungi are the only organisms that can decompose wood" and "beech woods are without doubt a very rich habitat for fungi". So, what's the best answer to the question? | OPTIONS:
- legumes
- elms
- Fungi
- Metal
- heat
- Trees
- h2o
- fungus
A: Fungi

Q: You are presented with the quiz "What causes food to spoil?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "bacteria cause food to spoil" and "water can be tested for coliform and fecal coliform bacteria". So, what's the best answer to the question? | OPTIONS:
- contamination
- influenza
- coliforms
- toxins
- disease
- Dehydration
- Pollution
- Pesticides
A: coliforms