<span>Forensic investigators observe the crime scene and gather any physical evidence that is found and document the analysis done on them. Sketches and the photos taken at the crime scene are also the part of the evidence they collect. Since here the bloodstains found by the Forensic investigators are less than 1mm diameter, they can deduce the weapon used for crime would be shotgun as it has a narrow barrel.</span>
Scientific argumentation is important as it helps determine whether there is enough evidence to support a claim. So the correct option C.
<h3>What is a scientific argumemtation? </h3>
The kind of discussion between scientists where they disagree about scientific claims using arguments or claims based on their own knowledge is called scientific argumentation.
The ultimate aim of this practice is to improve the explanations and experimental designs of other scientists so that their claims are refined and without any errors.
This practice also determines whether the evidence presented to support a scientific claim is sufficient or not.
Therefore the correct option is C.
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Because the surface of a leaf is smooth if the surface was rough the water would get stuck but it is smooth so the water just rolls off
<h2>Answer is option "B"</h2>
Explanation:
- Our brain requires an enormous measure of vitality and so as to meet this needs the progression of blood must be accurately arranged to guarantee that oxygen is being conveyed where it is required and when it is required.
- Vitality in the mind is created solely from a type of digestion that requires oxygen. However, neurons just keep up a little save of vitality and these cells require a constant inventory of oxygen, particularly when the cells are terminating and speaking with their neighbors.
- Blood dashing through a brain district's trap of vessels is an indication that nerve cells in that region have kicked vigorously. The blood races to dynamic territories to supply terminating neurons with the oxygen and glucose they require for vitality.
- Hence, the correct answer is option B "Active areas of the brain take up more oxygenated blood than they need for their energy requirements"
