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Subject: Science, asked on 27/4/17

Fill in the blanks.
1.Exhaust from vehicles contains___.
2.Earth's temperature is increasing due to___.

Subject: Science, asked on 27/4/17

How is carboxy haemoglobin formed?

Subject: Science, asked on 11/4/17

Write the method  of separation for the following.
a) Separating butter from curd
b) Oil from water
c) Dyes from ink
d) Pure salt from impure salt
e) Pins from other materials.
f) Separating miscible liquids

 

Subject: Science, asked on 21/3/17

Should one go to coaching centres from 9th standard itselffor preparationof competitive examinations ?

Subject: Science, asked on 21/3/17

In which class should one start preparing for IIT-JEE and what are the important topics for 9th standard preparation ?

Subject: Science, asked on 18/3/17

What happens when the aquatic system becomes acidic?

Subject: Science, asked on 4/3/17

Write the demerits of global warming and acid rain

Subject: Science, asked on 22/2/17

Explain how algae in water bodies harmful for the "ecosystem"?

Subject: Science, asked on 22/2/17

Give reason why releasing "hospital waste" directly into the river is harmful.

Subject: Science, asked on 19/2/17

groundwater is available in abundance in which kind of surface

Subject: Science, asked on 15/2/17

difference between global warming and greenhouse effect

Subject: Science, asked on 13/2/17

​​plz answer this question

Subject: Science, asked on 9/2/17

explain how city water workers makes river water safe for drinking?

Subject: Science, asked on 8/2/17

How can fertilisers become water pollutants?

Subject: Science, asked on 8/2/17

Name a few water borne diseases caused through untreated sewage.

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