📘 Day 11 – Revision Notes

📅 Date: 2026-01-11

Science

📝 Quick Notes

• Air is a mixture of gases.
• Oxygen supports burning.
• Carbon dioxide is used by plants.
• Nitrogen is the most abundant gas.
• Air contains water vapour.

❓ Revision Q&A

What is air?
A mixture of gases.

Which gas supports burning?
Oxygen.

Which gas do plants use?
Carbon dioxide.

Most abundant gas?
Nitrogen.

Does air contain water vapour?
Yes.

Maths

📝 Quick Notes

• Ratio compares two quantities.
• Ratio has no unit.
• Equivalent ratios are equal.
• Proportion shows equality of ratios.
• Ratios can be simplified.

❓ Revision Q&A

What is ratio?
Comparison of two quantities.

Does ratio have unit?
No.

What is proportion?
Equality of ratios.

Can ratios be simplified?
Yes.

Are equivalent ratios equal?
Yes.

English

📝 Quick Notes

• Articles are a, an, the.
• ‘A’ is used before consonant sounds.
• ‘An’ is used before vowel sounds.
• ‘The’ refers to specific noun.
• Articles are used before nouns.

❓ Revision Q&A

What are articles?
A, an, the.

When is 'a' used?
Before consonant sound.

When is 'an' used?
Before vowel sound.

What does 'the' show?
Specific noun.

Are articles used before nouns?
Yes.

Social science

📝 Quick Notes

• Government has three organs.
• Legislature makes laws.
• Executive implements laws.
• Judiciary interprets laws.
• Separation of powers is important.

❓ Revision Q&A

How many organs of government?
Three.

Who makes laws?
Legislature.

Who implements laws?
Executive.

Who interprets laws?
Judiciary.

Why separation of powers?
To avoid misuse of power.