English

Water polluted by various human activities causes a number of water borne diseases. Which of the following is not a water borne disease?

Advertisements
Advertisements

Question

Water polluted by various human activities causes a number of water borne diseases. Which of the following is not a water borne disease?

Options

  • Cholera

  • Typhoid

  • Asthma

  • Dysentry

MCQ
Advertisements

Solution

Asthma

Explanation:

Asthma is an air borne respiratory disease. It is caused due to an allergy to dust, pollen grains or any other allergen present in the air.

shaalaa.com
  Is there an error in this question or solution?
Chapter 18: Wastewater Story - MULTIPLE CHOICE QUESTIONS [Page 93]

APPEARS IN

NCERT Exemplar Science [English] Class 7
Chapter 18 Wastewater Story
MULTIPLE CHOICE QUESTIONS | Q 5. | Page 93

RELATED QUESTIONS

Name the four main sources of water.


The solubility of a gas in water.............. with rise in temperature and.......................with rise in pressure.


Give one word for the following statement:

A mixture of common salt and ice .


State whether the given statement are true or false. If true, write the reason.
Water availability per person in India is declining.


Water exists in all three states. Discuss.


Explain why:

Fused CaCl2 or conc. H2SO4 is used in a desiccator.


Of the total water available on the earth, fresh water forms ______ percent.


Name a ‘pure form’ and an,‘impure form’ of water in the natural state.


Fill in the blank:

The sample of hard water which lathers with soap after boiling and filtration contains _____.


State any two sources of water pollution.


True or false? Correct the wrong statement.

We get rainwater throughout the year.


________ of water is in oceans and seas.


On which of the following day is World Water Day observed?


From where do the following usually get water? In which form is water present in them?

Plants


From where do the following usually get water? In which form is water present in them?

Aquifer


Complete the following chart by writing appropriate words in the boxes marked (a) to (e).


Pick from the following one chemical used to disinfect water.


Match the items of Column I with the items of Column II with reference to sewage.

Column I Column II
(a) Inorganic impurities (i) phosphorus and nitrogen
(b) Organic impurities (ii) nitrates and phosphates
(c) Nutrients (iii) cholera and typhoid
(d) Bacteria (iv) pesticides and herbicides

Write any two activities which require more than a bucket of water.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×