Earth Subsystems

Which of the earth's subsystems contains mountains, valleys and other landscapes?

• atmosphere

• biosphere

• geosphere

• hydrosphere

Saline water comprises how many percent of the hydrosphere?

• 71%

• 68%

• 75%

• 78%

What is the order of the geosphere layers from earth's surface inwards?

• crust-mantle-outer core-inner core

• mantle-crust-outer core-inner core

• crust-mantle-inner core- outer core

• mantle-crust-inner core-outer core

Choose the most appropriate description of the hydrosphere:

• the atmospheric water

• waters on earth including subsurface

• the mixture of gases that surround the earth

• all of the above

The accumulation of what gases traps the sun's long wave energy from being radiated back to outer space causing global warming?

• greenhouse gases

• inert gases

• noble gases

• primordial gases

In what part of the atmosphere artificial satellites are situated?

• troposphere

• thermosphere

• stratosphere

• mesosphere

What is the collective term for the solid part of the hydrosphere - the glaciers and icecaps and iceberg

• iosphere

• aquasphere

• ionosphere

• cryosphere

Biosphere is the limited part of the planet that can support living things. In what part of the atmosphere, living things inhabit?

• ionosphere

• stratosphere

• troposphere

• mesosphere

Of the four earth subsystems, which is the biggest?

• biosphere

• atmosphere

• hydrosphere

• geosphere

Atmospheric weather occurs in what layer of the atmosphere?

• mesosphere

• troposphere

• thermosphere

• stratosphere