Fact 1: Afire requires oxygen to burn. Fact 2: Oxygen has eight protons and eight electrons. Given the two facts above, answer the question "What does a fire require to burn?" with the following options: - A transportation fuel - Something with exactly 2 protons - chemical to mechanical energy - Something with exactly eight protons - Something with exactly 1 proton - Burning fuel and air - igniting fuel and oxidiser - Something with 7 protons
Something with exactly eight protons

Fact 1: Caecilians can be found in moist soil near rivers and streams in tropical regions. Fact 2: Caecilians are amphibians that move just like earthworms. Given the two facts above, answer the question "What can be found in moist soil near rivers and streams in tropical regions?" with the following options: - Most plants - amphibians - shrub beds - bioaerosols - ferns - nothing - extra-terrestrial technology - deep-sea dwellers
amphibians

Q: Fact 1: Balance is the ability to sense and maintain body position. Fact 2: Body position is critical. Given the two facts above, answer the question "What is critical?" with the following options: - Balance - oxygen - recovery - Electrical - heat - sun's heat - stay warm - stamina
A: Balance

Question: Fact 1: Arteries generally carry oxygen-rich blood. Fact 2: Arterial Blood Pressure Arteries conduct blood away from the heart. Given the two facts above, answer the question "What is generally true about blood going away from the heart?" with the following options: - The bending of a ray of light - it is 99% water - A compound that donates proton - To another location like underground - it is usually low in oxygen - it can be seen - it has no hemoglobin - it is usually oxygen-rich
Answer: it is usually oxygen-rich

*Question*
Fact 1: Carbon may be stored in sedimentary rock for millions of years. Fact 2: Carbon sinks are storage areas for carbon. Given the two facts above, answer the question "What can be stored in sedimentary rock for millions of years?" with the following options: - Chemical energy - fossil fuels - Energy - Coal sinks - bioaerosols - In sediment - Energy. - kinetic energy
**Answer**
Coal sinks

*Question*
Fact 1: Flagella help prokaryotes move. Fact 2: Flagella and cilia are similar in structure. Given the two facts above, answer the question "something what to cilia help prokaryotes move." with the following options: - it needs them - Chemical energy - similar in structure - It helps them survive - it keeps an organism warm - major threat to health - An object is seen - The bending of a ray of light
**Answer**
similar in structure