The answer is: A. collecting data
During this process , researchers would use their observational skills and record every notable occurrence that happen to the variables.
The focus on this process is simply to add all relevant data without making any analyzation. That process come later on after the researchers started to change the variables in order to see whether it would create a correlation.
Answer:
A compound with a C:H:O. ratio of 1:2:1 is a carbohydrate. The body uses carbohydrates mainly as an energy source.
Explanation:
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<u><em>Rodhocetus is an extinct genus of protocetid early whale.</em></u>
<span>The primary evidence that supports the theory that an asteroid strike approximately 65 million years ago caused a mass extinction is a thin layer of clay containing iridium, an element that is common in space, but not on earth being of that age and found in many different places in the world, indicating a large-scale event..</span>
