There are approximately 70.906
The dependent variable is plant height.
The <em>dependent variable</em> (plant height) is the <em>property that changes</em> as a result something the scientist does.
The <em>independent variable</em> is the <em>property that the scientist changes</em> systematically (the amount of CO_2) to see its effect.
The <em>number of plants</em> and the <em>types of plants</em> are <em>uncontrolled variables</em>. They may or may not affect the heights of the plants.
Answer:
Pulse
Explanation:
The sign that would make me call 911 is his pulse. If the child's pulse is unresponsive, then that would be a clear sign for me to call the paramedics.
You have to use density=mass/volume formula:
Solve for x and you get
2282.75 grams
A scientific law is a statement that is universally accepted and answers the "how?" question.
Hope this helps!
