Answer:
B. Light
Explanation:
Light is electromagnetic wave. Electromagnetic wave is a type of wave which does not requires medium for its propagation so that's why light travel through space from sun and sound can't because sound is longitudinal wave which requires medium for its propagation. Electromagnetic wave is also called transverse waves. In transverse or electromagnetic wave, movement of oscillation is perpendicular to the direction of the wave.
Answer:
Non-zero digits are always significant. Any zeros between two non-zero digits are significant. A final zero or trailing zeros in the decimal portion ONLY are significant.
Explanation:
The three primary purposes that advertising objectives can be classified by area; To inform; this is in the case of a new product where the company needs to inform the customers and create awareness on the existence of a new product. Secondly; To persuade; once you are in a competitive environment there is need to persuade the customers to buy your product. Lastly, To remind; this is especially important for a mature brand.
By process of elimination you can find the right answer. We know for a fact that carbon is found in all living organisms. That is why we talk about carbon based life forms. So the first statement cannot be true. You can figure out how many Valence electrons an element has by looking at the group number. The group number of carbon is 4 so the 2nd statement cannot be true. We know that carbon does bond with other elements because it is not a noble gas and therefore must be able to form compounds.
This means the answer must be they can form up to four covalent bonds
