Community health is a branch of public health which focuses on people and their role as determinants of their own and other people's health in contrast to environmental health, which focuses on the physical environment and its impact on people's health. water, soil, and food. Natural and technological disasters. Climate change. Environmental factors include temperature, food, pollutants, population density, sound, light, and parasites. Why Is Environmental Health Important? Maintaining a healthy environment is central to increasing quality of life and years of healthy life. Globally, 23% of all deaths and 26% of deaths among children under age 5 are due to preventable environmental factors. ... Natural and technological disasters. WHO's programmes and initiatives on water and sanitation, vector-borne diseases, indoor air pollution, chemical safety, transport, ultraviolet radiation, nutrition, occupational health, food safety and injury prevention all address issues critical to improving environmental health. What Are the Top 5 Environmental Concerns for 2019?
Biodiversity. Biodiversity is the most complex and vital feature of our planet. ...
Water. Water pollution is a huge concern for us and our environment. ...
Deforestation. We need plants and trees to survive. ...
Pollution. ...
Climate Change. A healthy, equitable community is one that offers complete social, physical and mental well-being to all its residents at all stages of life and has the following themes embedded across all the components: accessibility, affordability, stability, diversity, safety, equity. Air Quality. Air pollution is a major environmental risk to health and is estimated to cause approximately two million premature deaths worldwide per year. A reduction of air pollution is expected to reduce the global burden of disease from respiratory infections, heart disease, and lung cancer.
Answer:
The correct order of events in sound transmission is 1, 4, 2,3 5
Explanation:
1. Tympanic membrane vibrates.
4. Ossicles of the ear vibrate.
2. Internal ear fluids are set in motion.
3. Hearing receptors are stimulated.
5. Auditory cortex is stimulated.
Sound is received by external ear or pinna that travels into the ear canal and causes the eardrum or tympanic membrane to move. The tympanic membrane vibrates with sound waves. Sound vibrations move through the ear bones or ossicles to the cochlea and cochlea moves due to sound vibration. Fluid movement causes the hair cells to move. As hair cells move up and down, electrical signals is generated. The auditory nerve sends electrical signal to the brain, which turns it into a sound.
That is a true statement.
