Answer:
perform an experiment
Explanation:
by testing a subject you could analyze the results and prove or disprove the priorly created hypothesis
Answer:
The air at higher altitudes is colder, less dense, and contains fewer oxygen molecules. This means that you need to take more breaths in order to get the same amount of oxygen as you would at lower altitudes. The higher the elevation, the more difficult breathing becomes
Explanation:
This is expressed as Moisture Content or Water Content
Most food items have a water content. Even seemingly 'solidified' foods such as a piece of bread or bun have a certain water content in them.
For vegetables and fruits, the water content as a percentage of the weight can be huge.
For example, fruits such as Watermelons contain 92% in every bite with just 6% sugar and 2% fiber by weight.
I believe the answer is d.
