Layers of the Atmosphere worksheet with labeled diagram and questions about atmospheric layers and ozone.

Let’s solve this step by step.

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Q.1: Label the diagram of the layers of the atmosphere using the keywords below.

Keywords given:
- Stratosphere
- Thermosphere
- Mesosphere
- Ozone layer
- Exosphere

We are given altitude ranges and need to match them with the correct atmospheric layer or feature.

Recall the standard order of Earth’s atmospheric layers from bottom (closest to surface) to top:

1. Troposphere → 0 to about 12 km
(This is already labeled in the diagram — where weather happens, planes fly here.)

2. Stratosphere → about 12 km to 50 km
(Contains the ozone layer — which absorbs UV radiation)

3. Mesosphere → about 50 km to 80 km
(Where meteors burn up — “shooting stars”)

4. Thermosphere → about 80 km to 700 km
(Very hot, contains ionosphere; satellites orbit here sometimes)

5. Exosphere → above 700 km, goes out to 10,000 km or more
(Outermost layer, fades into space)

Also note: The ozone layer is not a separate layer — it’s part of the stratosphere, roughly between 15–35 km altitude. But since the diagram has a blank at “12 km to 50 km” and another blank inside that range? Wait — looking at the diagram description:

The blanks are placed next to these altitude bands:

- 0 to 12 km → already labeled as Troposphere ✔
- 12 km to 50 km → blank #1 → should be Stratosphere
- Also, within this band, there's a smaller label pointing to “Ozone layer” — so we’ll assign “Ozone layer” to the inner box if needed? Actually, looking again:

Wait — the diagram shows:

From bottom up:

- 0 to 12 km → Troposphere (labeled)
- 12 km to 50 km → blank → this is Stratosphere
- AND within that same band, there’s a small rectangle labeled “Ozone layer”? Or is “Ozone layer” one of the blanks?

Actually, re-reading the problem:

It says: “Label the diagram... using the keywords below.” And lists 5 terms.

Looking at the diagram structure described:

There are 5 blank boxes to fill, corresponding to:

1. Next to “12 km to 50 km” → Stratosphere
2. Inside or near that? Wait — actually, the diagram likely has:

Altitude bands with labels on the right side:

- 0 to 12 km → Troposphere (already filled)
- 12 km to 50 km → [blank] → Stratosphere
- 50 km to 80 km → [blank] → Mesosphere
- 80 km to 700 km → [blank] → Thermosphere
- 700 km to 10,000 km → [blank] → Exosphere

AND — separately, there’s a label for “Ozone layer” — which is located *within* the stratosphere. So probably, one of the blanks is specifically for “Ozone layer”, maybe pointing to a region inside the 12–50 km band.

But wait — the user wrote:

> Layers of the Atmosphere (Worksheet)
> Q.1. Label the diagram... using the keywords below.
> • Stratosphere • Thermosphere • Mesosphere • Ozone layer • Exosphere

And the diagram has 5 blank boxes? Let me count based on altitudes listed:

Listed altitude ranges with blanks:

- 12 km to 50 km → blank 1
- 50 km to 80 km → blank 2
- 80 km to 700 km → blank 3
- 700 km to 10,000 km → blank 4

That’s only 4 blanks? But we have 5 keywords.

Ah — perhaps the “Ozone layer” is an additional label pointing to a specific spot within the stratosphere. In many diagrams, they show “Ozone layer” as a sub-label inside the stratosphere.

So likely:

- Blank at 12–50 km → Stratosphere
- Within that, a smaller label → Ozone layer
- Then:
- 50–80 km → Mesosphere
- 80–700 km → Thermosphere
- 700–10,000 km → Exosphere

Yes — that uses all 5 keywords.

So final labeling:

- 12 km to 50 km → Stratosphere
- (and within it, point to Ozone layer)
- 50 km to 80 km → Mesosphere
- 80 km to 700 km → Thermosphere
- 700 km to 10,000 km → Exosphere

Perfect.

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Q.2: Write T or F

Statement 1: *Ozone is a gas made up of four oxygen atoms.*

→ False. Ozone is O₃ — three oxygen atoms. Oxygen gas is O₂. Four would be O₄, which isn’t stable or common.

✔ Answer: F

Statement 2: *In addition to Earth, many of the other planets in the Solar System have atmospheres.*

→ True. Venus, Mars, Jupiter, Saturn, Uranus, Neptune — all have atmospheres. Even Titan (moon of Saturn) has one. Only Mercury and our Moon have almost none.

✔ Answer: T

Statement 3: *The main function of the ozone layer is to shield the Earth from the harmful ultraviolet rays of the Sun.*

→ True. That’s exactly what it does — absorbs most of the Sun’s UV-B and UV-C radiation.

✔ Answer: T

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Final Answer:

Q.1:
- 12 km to 50 km → Stratosphere
- (within stratosphere) → Ozone layer
- 50 km to 80 km → Mesosphere
- 80 km to 700 km → Thermosphere
- 700 km to 10,000 km → Exosphere

Q.2:
1. F
2. T
3. T