Option B is correct. Average speed can be found through the equation speed = distance/time. Applying this to each person using the data in the chart:
Dennis’ speed: 60 ft/0.5 secs = 120 ft per sec
Johnny’s speed: 60 ft/0.45 secs = 133.333 ft per sec
Travis’ speed: 60 ft/0.52 secs = 115.38 ft per sec
Michael’s speed: 60 ft/0.48 secs = 125 ft per sec
As you can see, Johnny’s speed is the fastest at 133.333 ft/sec.
It is photosynthesis
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photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct, hope it helps</span>
Answer : The correct option is, (a) to increase surface area of a solute
Explanation :
A mortar and pestle is a type tool that is used in the chemical laboratory for grinding and mixing the substances.
In the mortar and pestle, the pestle is a heavy or small substance that is made from porcelain material that has the rounded end. The mortar is a bowl type that is also made from porcelain material.
In the chemical laboratory, the scientists use a mortar and pestle due to increase the surface area of a solute. That means by the girding of the solute, the surface area will increases.
Hence, the correct option is, (a) to increase surface area of a solute
Answer:
C. ancestors of
Explanation:
The species found as extinct in the fossil records are often times the ancestors of modern species.
- Based on the concept of evolution, organisms formed from their earlier forms.
- A concise trace and study of the history of organism often shows similarity in functions and properties between present day organisms and their ancestors.
