Substances that store chemical energy are primarily fuels such as coal, wood, natural gas, petroleum and propane, as well as foods, batteries and matches. Encyclopædia Britannica defines chemical energy as energy stored in the bonds of chemical compounds that can be released during a chemical reaction.
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Answer:
I would.
Explanation:
Saving the environment is really important. The only downside would be only being able to use it during the day.
Answer:
Small external openings of lungs help in two ways:
1. It helps in trapping the dust and pathogens like bacteria, fungal spores et cetera. Larger opening would provide dust and pathogen a wider area to enter into the body.
2. The smaller opening prevents the drying of the respiratory membrane. A moist membrane is essential for the successful exchange of oxygen and carbon dioxide in the lungs.
Answer:
.8 miles a minute
Explanation:
convert 2 1/2 hours to minutes and divide it by 120
