Class 8 English Notes: - Unit 8: Science and Technology - The Lesson - Life on Mars - Exercise Questions And Answers:

Click 👉  Use of English/Grammar Exercise- Unit 8: Science and Technology - Life on Mars

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Exercise Question and Answers:

Unit 8: " Science and Technology"

The Lesson - Life on Mars

(National Book Foundation - New Book/New Syllabus Based on Single National Curriculum Pakistan 2024-2025 and Onwards) 

Comprehension Checkpoint:

Answer the questions in detail.

1. What did Dr. David McKay discover that came from Mars?

Ans: Dr. David McKay had discovered possible fossils of bacteria in a meteorite named ALH84001 that came from Mars. It was found in the Allen Hills in Antarctica in 1984 after having landed there 12,000 years ago.

2. Describe the distinctive features of the rock, ALH84001.

Ans: The rock ALH84001, had a peculiar chemical makeup. It contained a combination of minerals and carbon compounds that on Earth are created by microbes. It also had crystals of magnetic iron oxide, called magnetite, which some bacteria produce.

3. When and where did NASA find the rock from Mars?

Ans: NASA found the rock in the Allen Hills in Antarctica in 1984 after having landed there 12,000 years ago.

4. What would NASA do next, if everything goes as planned?

Ans: If everything goes as planned, a new generation of rovers will arrive on Mars within the next decade. These missions will incorporate cutting-edge biotechnology designed to detect individual molecuels made by Martian organisms, either living or long dead.

5. During the survey in February conference, what was the speculation of the Mars experts regarding life on Mars? What is your point of view on
this matter?

Ans: At a February conference in the Netherlands, an audience of Mars experts was surveyed about Martian life. Some 75 percent of the scientists said they thought life once existed there, and of them, 25 percent think that Mars harbors life today. My point of view is that it may not be possible for life to exist on Mars. That would need so many other necessary conditions which may not exist on Mars ever.

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Class 8 English Notes (Main page)

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Summary of poems: 

Unit-2: The poem “A Time to Talk”

Unit-2: The Lesson “Everyday it Happens”

Unit-2: The poem “Do it anyway”

Central Ideas of poems: 

Unit-2: The poem “A Time to Talk”

Unit-2: The Lesson “Everyday it Happens”

Unit-2: The poem “Do it anyway”

Unit-5: The poem “A Far Away Village”

Paraphrasing of poems: 

Unit-2: The poem “A Time to Talk”

Unit-2: The Lesson “Everyday it Happens”

Unit-2: The poem “Do it anyway”

Unit-5: The poem “A Far Away Village”

Source: English Book (National Book Foundation, Pakistan)

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