Earth's Spheres and Ecosystem Interactions

The video tutorial by Mr. Page covers the five spheres of Earth: atmosphere, biosphere, lithosphere, hydrosphere, and cryosphere. It explains the layers of the atmosphere and their protective roles, the structure of the biosphere, and the food chain hierarchy. The tutorial also discusses complex food webs and interactions between different spheres, highlighting both constructive and destructive impacts. It concludes with examples of events affecting the atmosphere and biosphere, such as global warming and extreme weather.

Which of the following is NOT one of the five spheres of Earth?

• Atmosphere

• Biosphere

• Hydrosphere

• Astrosphere

What is the primary function of the thermosphere?

• To create weather patterns

• To prevent excessive heat from the Sun

• To support plant life

• To provide oxygen for breathing

Which layer of the atmosphere is responsible for burning up meteors?

• Thermosphere

• Mesosphere

• Stratosphere

• Troposphere

In the food chain, what role do plants play?

• Predators

• Decomposers

• Consumers

• Producers

Which of the following is an example of a primary consumer?

• Bluebird

• Snake

• Grasshopper

• Grass

What is the apex predator in the given food chain example?

• Grasshopper

• Bluebird

• Snake

• Owl

How do food webs differ from food chains?

• Food webs only involve plants

• Food webs are simpler

• Food webs are more complex

• Food webs do not involve the Sun

What type of interaction is rainfall considered if it is average and normal?

• Constructive

• Irrelevant

• Neutral

• Destructive

What can excessive carbon dioxide in the atmosphere lead to?

• Decreased evaporation

• Increased rainfall

• Reduced global warming

• Stable polar habitats

What is a chain reaction in the context of sphere interactions?

• A predictable weather pattern

• A single event affecting one sphere

• A series of events affecting multiple spheres

• An isolated event with no impact