मराठी

State whether the following statement is True or False. If false, write the correct statement. Ice is solid whereas snow is the semi-solid form of water

Advertisements
Advertisements

प्रश्न

State whether the following statement is True or False. If false, write the correct statement.

Ice is solid whereas snow is the semi-solid form of water

पर्याय

  • True

  • False

MCQ
चूक किंवा बरोबर
Advertisements

उत्तर

This statement is False.

Explanation:

Snow is also a solid form of water.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 16: Water : A Precious Resource - VERY SHORT ANSWER QUESTIONS [पृष्ठ ८६]

APPEARS IN

एनसीईआरटी एक्झांप्लर Science [English] Class 7
पाठ 16 Water : A Precious Resource
VERY SHORT ANSWER QUESTIONS | Q 11. (b) | पृष्ठ ८६

संबंधित प्रश्‍न

Name the four main sources of water.


Give reason On opening a bottle of a cold drink, a fizz sound is heard.


Name the gas produced when chlorine is dissolved in water and exposed to sunlight.


Name the gas produced when fossil fuel is burnt.


 Match the statements in column A with that in column B.

 Column A  Column B
 (a) deliquescent substance (1) sodium bicarbonate
 (b) hygroscopic substance (2) magnesium chloride
 (c) efflorestance substance (3) conc. sulphuric acid
 (d) substance causing temporary hardness (4) washing soda

Give one word  for the following statement:

The harmful substances dissolved in water .


Answer the following question:

What is the chemical composition of water ? Give its molecular formula.


What are its causes and how can water pollution be controlled ?


Explain why:

Air dissolved in water contains a higher proportion of oxygen.


What is the composition of water? In what volume its elements combine?


State what is potable water. Give its qualities or characteristics which make it fit for human consumption.


Give a balanced equation for the following conversion:

Calcium sulphate in permanent hard water to calcium carbonate using sodium carbonate.


Give a balanced equation for the following conversion:

Magnesium bicarbonate in temporary hard water to magnesium carbonate by boiling.


Name one substance which is ‘deliquescent’.


Pour water from the ice tray into a kettle. Ask an elder at your home to heat the kettle and observe the mouth of the kettle when the water starts boiling.
What do you see?


Around 97% of water available on earth is ______ water.


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?

Aquifer


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

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×