WHAT I KNOW

You are now standing on the earth’s crust. Which sphere does earth’s crust belong?

• Biosphere

• Hydrosphere

• Atmosphere

• Geosphere

There are two systems, which govern the earth, the open and close system. What do you mean by closed system?

• Materials flow freely within, in and out of the system.

• Materials flow freely within but cannot exit and enter the system

• Materials and energy flow freely within, in and out of the system.

• Materials and energy flow freely within but cannot exit and enter the system

Which of the following shows the correct pairing of subsystem and its components?

• Hydrosphere – comprises of human beings whose actions affect all other subsystems.

• Atmosphere – includes the rocks of the crust and mantle, the metallic liquid outer core, and the solid metallic inner core.

• Geosphere – includes the oceanic water, surface and groundwater, glaciers and icebergs, water vapor in the air

• Biosphere – covers all ecosystems, from the soil to the rainforest, from mangroves to coral reefs, and from plant-rich ocean’s surface to the deep sea.

Which of the following does not show the interaction between the biosphere and the earths other spheres?

• Decaying organic matter enriching the soil quality

• The interaction of land and ocean giving life to different organisms.

• Evaporation, condensation, and precipitation of the hydrologic cycle

• Volcanic vents providing habitats to organisms with high heat capacity

Which of the following is NOT an example of an interaction between the hydrosphere and geosphere?

• Water drank by people

• Erosion of soil after the typhoon

• Landslide after heavy rains

• Underground water stored in the soil

Which of the following is not a part of the Biosphere?

• plants and animals

• dead organic matter produced by different organisms

• different bacteria and microorganisms

• none of the above.

Ecosystems are comprised of living things. In which sphere you can find this?

• Atmosphere

• Lithosphere

• Biosphere

• Hydrosphere

All of the following correctly describe the Earth’s principal subsystems EXCEPT:

• The Earth is composed of subsystems interacting with one another.

• These subsystems are close systems that are interwoven and interdependent.

• The subsystems are the atmosphere, geosphere, biosphere, and lithosphere

• The principal subsystems allow entrance and exit of both matter and energy.

Which of the following is NOT one of the four major geological subsystems of Earth?

• hydrosphere

• water sphere

• geosphere

• atmosphere

Earth system science studies the roles and relationships of the 4 subsystems. Which of them is considered as the integral subsystem?

• The atmosphere because climatic changes and weather are important.

• The biosphere since living organisms is the heart of all interactions.

• The geosphere because the movement of crust changes history and era

• The hydrosphere since it provides water, a key molecule for phenomena to occur