Answer:
Doppler Effect
Explanation:
Doppler Effect is a term in Physics that describes the phenomenon experienced when there is change in wave frequency during the relative motion between a wave source and its observer.
In other words, it is referred to as increase or decrease in the level of sound, or other waves as the distance between source and observer is closer or farther from each other, such that it causes change in pitch, which is noticeable by the observer.
For example, when a sound object moves towards an individual or observer, the frequency of the sound waves increases, leading to a higher pitch, and at the same time, when the sound object moves away from an individual or observer, the frequency of the sound waves decreases, leading to a lower pitch. E.g passing siren from ambulance.
Hence, in this case, the right answer is DOPPLER EFFECT
The president has the ultimate authority and control over U.S. foreign and military policy.The president is one of the world’s powerful political figures and includes being the commander in chief of the world’s most expensive military. The president is the head of the state and directs the executive branch of the government of the United States.
Chemical water/air affect human body health function.
Short-term exposure to some chemical pollutants can impair the immune, endocrine and reproductive systems. pollution may reason lesions, alter liver function or darken the skin. Chemical pollution may trigger asthma symptoms in those diagnosed with the disease. Exposure to excessive stages of air pollutants can purpose a spread of adverse health results. It increases the threat of breathing infections, heart ailment and lung cancer. both short and long term exposure to air pollution have been related to fitness impacts. More intense impacts affect people who are already unwell.
If drinking water carries dangerous levels of contaminants, it may motive fitness effects, along with gastrointestinal ailments, nervous system or reproductive outcomes, and continual sicknesses which include cancer. Many other materials may also be absorbed through the pores and skin in big quantities. These consist of mercury, isocyanates, polychlorinated biphenyls (PCBs), acrylates, and pharmaceutical products together with steroids and nicotine.
Learn more about chemical pollution here:-
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Answer:
i think it would be england
How are we supposed to know question but t
