1. Define the term health.
2. What are communicable diseases ?
3. Write the names of some diseases caused by virus.
4. What are vectors ?
5. What are the main symptoms of malaria ?
6. Name the causative agent and prevention of dengue.
7. What are the effects of alcohol on human body ?
8. How do vaccines help in providing immunity against diseases ?
9. List some harmful effects caused due to addiction of tobacco.
10. Explain it 'how smoking is injurious to health'.
Answers
Answer:
1. Health is a state of physical, mental and social well-being in which disease and infirmity are absent
2.Communicable diseases, also known as infectious diseases or transmissible diseases, are illnesses that result from the infection, presence and growth of pathogenic (capable of causing disease) biologic agents in an individual human or other animal host
3.smallpox.
smallpox.the common cold and different types of flu.
smallpox.the common cold and different types of flu.measles, mumps, rubella, chicken pox, and shingles.
smallpox.the common cold and different types of flu.measles, mumps, rubella, chicken pox, and shingles.hepatitis.
smallpox.the common cold and different types of flu.measles, mumps, rubella, chicken pox, and shingles.hepatitis.herpes and cold sores.
smallpox.the common cold and different types of flu.measles, mumps, rubella, chicken pox, and shingles.hepatitis.herpes and cold sores.polio.
smallpox.the common cold and different types of flu.measles, mumps, rubella, chicken pox, and shingles.hepatitis.herpes and cold sores.polio.rabies.
smallpox.the common cold and different types of flu.measles, mumps, rubella, chicken pox, and shingles.hepatitis.herpes and cold sores.polio.rabies.Ebola and Hanta fever.
4.A vector is an object that has both a magnitude and a direction. Geometrically, we can picture a vector as a directed line segment, whose length is the magnitude of the vector and with an arrow indicating the direction
5.Malaria is a disease caused by a parasite. The parasite is transmitted to humans through the bites of infected mosquitoes. People who have malaria usually feel very sick, with a high fever and shaking chills. Each year, approximately 210 million people are infected with malaria, and about 440,000 people die from the disease. Most of the people who die from the disease are young children in Africa.
6.Dengue fever is among the most common mosquito-borne virus infections. Causative agent of the disease is the Dengue virus, of which four different types are known. The virus cannot be transmitted from human to human. In order to spread the disease needs a mosquito as alternate host.
7.Heavy drinking can cause or contribute to liver damage, cardiovascular disease, and multiple types of cancer. Long-term effects of excessive drinking may include: Diminished gray matter and white matter in the brain.
8.Vaccines give you immunity to a disease without you getting sick first. They are made using killed or weakened versions of the disease-causing germ or parts of the germ (called antigens). For some vaccines, genetic engineering is used to make the antigens used in the vaccine
9.The effects of any drug (including tobacco) vary from person to person. How tobacco affects a person depends on many things including their size, weight and health, also whether the person is used to taking it. The effects of tobacco, as with any drug, also depend on the amount taken
10. Smoking can cause lung disease by damaging your airways and the small air sacs (alveoli) found in your lungs. Lung diseases caused by smoking include COPD, which includes emphysema and chronic bronchitis. Cigarette smoking causes most cases of lung cancer.
hope this helps you ______.....
Answer:
The Internet is the biggest world-wide communication network of computers. The Internet has millions of smaller domestic, academic, business, and government networks, which together carry many different kinds of information. The short form of internet is the 'net'. ... It is used by billions of people all over the world
Explanation:
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