SCIENCE BST401 - NOTEBOOK

LAYERS OF ATMOSPHERE

Why do we need air?

• We need air to breathe.

• We need air only to do breathing exercises.

• We need air to operate electronics.

• We need air to hear.

LAYERS OF ATMOSPHERE

ANSWER FOR (A)

The (A) shows the most pricking marks while the (B) shows the least pricking parks. It implies that the outermost layers of the atmosphere receive the most sunrays compared to the lower layers that receive the least sunrays.

• Exosphere

• Thermosphere

• Mesosphere

• Stratosphere

• Troposphere

LAYERS OF ATMOSPHERE

ANSWER FOR (B)

The (A) shows the most pricking marks while the (B) shows the least pricking parks. It implies that the outermost layers of the atmosphere receive the most sunrays compared to the lower layers that receive the least sunrays.

• Exosphere

• Thermosphere

• Mesosphere

• Stratosphere

• Troposphere

LAYERS OF ATMOSPHERE

Shields all the other layers.

• Exosphere

• Thermosphere

• Mesosphere

• Stratosphere

• Troposphere

LAYERS OF ATMOSPHERE

Absorbs maximum sunrays.

• Exosphere

• Thermosphere

• Mesosphere

• Stratosphere

• Troposphere

LAYERS OF ATMOSPHERE

Burns the meteors.

• Exosphere

• Thermosphere

• Mesosphere

• Stratosphere

• Troposphere

LAYERS OF ATMOSPHERE

Airplanes fly in this layer and the ozone layer reflects the UV rays.

• Exosphere

• Thermosphere

• Mesosphere

• Stratosphere

• Troposphere

LAYERS OF ATMOSPHERE

Birds fly and clouds also form in this layer.

• Exosphere

• Thermosphere

• Mesosphere

• Stratosphere

• Troposphere

ATMOSPHERIC PRESSURE AND WIND

How many major layers are present in the atmosphere?

• 4

• 5

• 6

• 3

ATMOSPHERIC PRESSURE AND WIND

The top of this layer is considered to be the coldest part of the atmosphere.

• Exosphere

• Thermosphere

• Mesosphere

• Stratosphere

• Troposphere