Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing Schools Business

Features Pricing Schools Business

What If Earth Lost Oxygen for 5 Seconds?

15 Questions

0 Views

What If Earth Lost Oxygen for 5 Seconds?

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What percentage of the Earth's atmosphere is made up of oxygen?

78%

51%

21% (correct)

35%

What would happen to concrete structures if the Earth's oxygen disappeared for 5 seconds?

They would remain unaffected

They would dissolve in water

They would become stronger

They would instantly collapse (correct)

What is the role of oxygen in metals?

It adds color to the metals

It makes them magnetic

It prevents them from melting

It creates a layer of oxidation to prevent them from welding together (correct)

What would happen to our breathing if the Earth's oxygen disappeared for 5 seconds?

Our breathing would remain normal (D) Signup and view all the answers

What would be the outcome for plants, animals, and humans if oxygen disappeared forever?

They wouldn't be where they are today (A) Signup and view all the answers

What would happen to our ears if the oxygen in the air suddenly disappeared?

They would explode due to the drastic change in air pressure (B) Signup and view all the answers

What percentage of the Earth's crust is made up of oxygen?

45% (D) Signup and view all the answers

What would happen to the sky if the oxygen in the air suddenly disappeared?

It would become darker (B) Signup and view all the answers

What would happen to non-electric vehicles if the oxygen in the air suddenly disappeared?

They would come to a complete stop (A) Signup and view all the answers

What percentage of the air do we breathe is made up of oxygen?

21% (B) Signup and view all the answers

What would be the immediate consequence of losing oxygen in the air?

The air pressure would drop drastically (A) Signup and view all the answers

Why would planes fall from the sky if oxygen disappeared?

Because combustion engines would no longer function (B) Signup and view all the answers

What would be the effect on the sun's UV rays if oxygen disappeared?

They would be stronger due to the lack of oxygen (C) Signup and view all the answers

What would happen to fire if oxygen disappeared?

It would no longer be possible (B) Signup and view all the answers

Why would the Earth's crust crumble if oxygen disappeared?

Because oxygen is a crucial component of the Earth's crust (A) Signup and view all the answers