Answer:
<em>expenditures for search engine advertising</em>
Explanation:
In the field of business, internet marketing has become a new and advances business practice. Search engine can be described as a method by which online advertisements are made The search advertising can be considered to be an alternative for the SEO and the SEM.
By paid advertisements, the advertisers can occur first in the search engine result page which might beneficial to their business.
Answer:
Classification system changes because the scientists find new evidence in their studies.
Explanation: The world is always changing and growing and dying as well as developing, so over time things change. For example, as you grow up do you stay the same? No, you notice the physical changes happening, well thats sort of like how the earth and its ways are always changing as well.
Muscle cramp refers to the sudden contraction of an involuntary muscle. It can be caused by many factors including inadequate presence of some minerals such as calcium in the body; it can also be caused by poor circulation.
Straightening an althelete's leg and rubbing it vigorously make the muscle to relax and to snap back in place.
