Explanation:
info gathered b4 and after an experiment is used to confirm or disprove a hypothesis ( educated guess).
Answer:
Shark skin has been used by many cultures as sandpaper. It's kept shipmates safe in slippery-when-wet conditions. Swimsuits modeled on shark skin are said by Speedo to reduce drag by up to 4 percent. Now, research by two separate groups could lead to synthetic shark skin that would make ships and submarines faster and less expensive to operate.
Hey there friend!
Electrons come from atoms.
Hope this helps!
<span>If star A is farther from Earth than star B, but both stars have the same absolute magnitude, the option which is true about their apparent magnitude is that star B has the greater apparent magnitude.
Apparent magnitude refers to the magnitude of an object in space as it is actually measured from the earth, whereas absolute magnitude refers to the star's brightness.
</span>
they are formed by layers of dead cells and is produced by the formation of multiple layers of suberized periderm, cortical and phloem tissue.
