Due to green house effect, average temperature of earth is:
- 0°C
- 10°C
- 15°C
- 20°C
Show answer and explanation
Answer: C. 15°C
About 15 °C.
Practise 83 real Federal Board questions on Earth and Space from 2023 to 2026. See the answer and explanation as soon as you answer.
Earth and Space is one of the 5 main chapters in our Federal Board Matric General Science question bank (9th and 10th class), and about 14% of its real questions come from it. Tayyari Karo has 83 real questions on this chapter from 2023 to 2026; 28 are multiple choice and marked instantly, and the rest are short and long questions with a model answer. By difficulty: 47 medium, 36 easy.
Work through the questions below, then open the explanation for each one. Redo the ones you missed a few days later.
These are real past-paper questions. Think of your answer first, then open the explanation.
Due to green house effect, average temperature of earth is:
Answer: C. 15°C
About 15 °C.
Hot molten part, deep in the earth is called:
Answer: C. Magma
Molten rock below the surface is magma.
Land covered with forest in Pakistan is only:
Answer: B. 5%
Forests cover only about 5% of Pakistan.
Due to greenhouse effect average temperature of earth is:
Answer: A. 15°C
The natural greenhouse effect keeps the earth at about 15 °C.
A rocket which is used for space exploration consists of:
Answer: A. 3 stages
Space rockets are usually three-stage rockets.
Sputnik-I was sent into space by:
Answer: A. Russia
The USSR (Russia) launched Sputnik-I in 1957.
What are the cause of Greenhouse effect? Describe in detail.
Greenhouse effect: gases such as carbon dioxide, methane, water vapour, nitrous oxide and CFCs in the atmosphere let sunlight pass through but absorb the infrared (heat) radiated by the earth and radiate part of it back, warming the earth. A natural greenhouse effect keeps the earth at about 15°C (otherwise about −18°C).
Causes of increase: burning of fossil fuels, deforestation, industries, vehicles, use of fertilisers and cattle farming.
Effects: global warming, melting of glaciers and polar ice, sea level rise and floods, change in climate and rainfall, spread of diseases and loss of species.
Control: use renewable energy, plant trees, save energy and reduce pollution.
Write method to reduce water pollution.
Methods to reduce water pollution: (1) treat industrial and sewage waste before throwing it in rivers and seas; (2) do not throw garbage, oil or dead animals into water; (3) use limited amounts of fertilisers and pesticides; (4) use biodegradable detergents; (5) build sewage treatment plants; (6) pass and enforce laws against pollution and create public awareness.
| Session | Questions |
|---|---|
| 2026 Annual | 11 |
| 2025 1st Annual | 21 |
| 2025 2nd Annual | 24 |
| 2024 Annual | 16 |
| 2023 Annual | 11 |
83 real Federal Board (FBISE) General Science questions on Earth and Space from 2023 to 2026, for 9th and 10th class. Each one shows the session it came from.
No. We could not find an official FBISE marking scheme for these papers, so the answers and explanations are written by Tayyari Karo for practice. Check anything important with your teacher or textbook.
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