Download App

Wastewater Story — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7ScienceWastewater Story1 Mark
Question
Name two chemicals used to disinfect water.
✓

Answer

Two chemicals used to disinfect water are chlorine and ozone.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "1 Marks Question" from Wastewater Story→Wastewater Story — all question types→Science STD 7 question papers→Gujarat Board STD 7 question papers→Gujarat Board question paper generator→

Similar questions

State in brief what we can demonstrate by rotating Newton's colour disc very fastly.
→
What was removed by the sand filter?
→
What is the motion of a child in a merry-go-round?
→
Fill in the blank: The decaying leaves and animal droppings in a forest enrich the _______.
→
What do you mean by a closed circuit?
→
How many elements are currently known?
→
Name the two types of blood vessels.
→
Explain the function of cell in a circuit.
→
What are villi? What is their location and function?
→
Tick the correct answer:

The plant which traps and feeds on insects is

  • Cuscuta

  • china rose

  • pitcher plant

  • rose

→