In which atmospheric layer is air needed for human life most readily available?
Answer and explanation
Correct answer: Troposphere
The troposphere is the lowest atmospheric layer and lies directly above Earth’s surface, where people, animals, and plants live. It contains most of the atmosphere’s mass and therefore has the greatest concentration of oxygen and other gases needed for ordinary life. Option A is correct. The mesosphere, thermosphere, and exosphere are much higher, with progressively thinner air and conditions unsuitable for normal human breathing.
Frequently asked questions
What is the correct answer to this question?
Troposphere
Why is this the correct answer?
The troposphere is the lowest atmospheric layer and lies directly above Earth’s surface, where people, animals, and plants live. It contains most of the atmosphere’s mass and therefore has the greatest concentration of oxygen and other gases needed for ordinary life. Option A is correct. The mesosphere, thermosphere, and exosphere are much higher, with progressively thinner air and conditions unsuitable for normal human breathing.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Introduction to Accounting. Topic: Accounting Information.
