Answer:
Heavy city traffic
Explanation:
Noise pollution is caused by excessive and unwanted sound that causes the sound problem. The high level of heavy traffic, noise and disrupt distract. It affects the deleterious effect on the health and environmental quality. Most of the people think that this is the problem occurring with only those people who are living in big cities.
There are different type of resources that cause noise pollution:
- Traffic and transport
- The constructions noise
- The workplace noise
- Domestic place noise
Answer:
SPECT Single-photon emission computed tomography
Explanation:
SPECT is a technique that is used for tomography of the brain to know how the tissue and blood working in the brain. It shows the activity in the brain. This technique helps in diagnoses brain stroke, head injury, ischemia attack, blockage and mental illness like schizophrenia, Alzheimer's, etc.
It is an unclear imaging technique that merges with computed tomography and finds out the problem through a combination of SPECT. Before doing SPECT, an injection is injected into the blood stream. This technique is used to know the blood is flowing in arteries and veins.
