Environmental Scienc ...

State True (T) or false (F).

                      i.        Malaria is transmitted through the bite of an infected Anopheles mosquito. ___________

                     ii.        Chickenpox is caused through infected food and water. _________

                     iii.        Vaccination is an effective method of preventing communicable diseases.___________

                      iv.        Houseflies usually eat liquids._______

                       v.        Communicable diseases are also known as deficiency diseases. ________

                     vi.        Influenza is a deficiency disease. ___________

Fill in the blanks.

                         i.        The mere entry of germs into the body does not cause_______________.

                        ii.        ____________ is the best prevention against diseases.

                       iii.        ______________________parasite causes malaria.

                      iv.        ___________________ are too small to be seen by the naked eye.

                       v.        Organisms such as insects, mites, and ticks that transmit germs to human being and animal are called _______________.

                       vi.        _____________ on regular basis makes our body strong and healthy.

Match the following.

Vectors

Diseases caused due to inadequate intake of an essential nutrient in the diet.

Deficiency diseases

Disease caused by bacteria

Tuberculosis

Organisms such as insects, mites, and ticks that transmit germs to human being and animal.

Anemia

Caused by lack of vitamin C.

Scurvy

Is an iron-deficiency disease.

Answer the following:

What is ORS? How can it be prepared at home?

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

Differentiate between communicable diseases and non communicable diseases.

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

How is malaria caused? Explain.

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

Write 4 ways of keeping good health.

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

_____________________________________________________________

Answer the following:

Write 2 diseases caused by virus.

____________________     ____________________    

Write 2 diseases caused by bacteria.

____________________     ____________________    

Write 2 diseases caused by protozoa.

____________________     ____________________  

Write 2 diseases caused by fungi.

____________________     ____________________  

The study of microorganisms

____________________________________________

Germs that is too small to be seen by the naked eye.

____________________________________________

Full form of ORS.

____________________________________________

Full form of DDT.

____________________________________________

A disease caused by mosquitoes.

____________________________________________

A disease caused by houseflies.

____________________________________________

Name the insecticides that can kill mosquitoes and flies.

____________________________________________

Disease caused by microorganisms when an infected person comes in contact with another person.

____________________________________________

A disease caused by lack of vitamin D.

____________________________________________