EVS CIA I - March 2023

The layer of the atmosphere that experiences weather phenomena is?

• Troposphere

• Stratophere

• Mesosphere

• Thermosphere

The UV protective blanket known as the ozone layer is present in

• Troposphere

• Stratosphere

• Mesosphere

• Exosphere

Arrange the layers of the atmosphere so that 1 is the lowest layer and 5 is the highest

• Exosphere

• Stratosphere

• Troposphere

• Thermosphere

• Mesosphere

The primordial atmosphere was primaryily composed of hydrogen and helium, the main source of change in composition was

• Precipitation

• Volcanic eruptions

• Snowfall

• Earthquakes

Match the given interfaces based on their salient features

• Maximum exchange of gases

• Land

• Essential for water replenishment

• Glacier

• Largest interface

• Ocean

Which of the following is NOT a biotic component of the ecosystem

• Producers

• Consumers

• Biomolecules

• Decomposers

Reorder the following so that smallest ecosystem comes first leading to the largest

• Region

• Landscape

• Individual

• Populations

• Communities

The grazing food chain is shown. drag the labels to their correct locations (The first three labels are above and the last is below the concerned species)

a

b

c

d

Predator/Prey

Producer

Prey

Apex Predator