Year 10 Whole world in our hands

The sphere containing humus in soil, rocks, coal and oil deposits:

• Hydrosphere
• Lithosphere
• Atmosphere
• Biosphere

As greenhouse gases increase, oceans are becoming...

• clearer
• saltier
• more acidic
• muddier

How do changes in the ocean affect coral reefs?

• Warm, acidic water causes coral to bleach and then die
• Coral reefs grow faster in warmer water
• Warmer water supports fish that like to eat coral, destroying the reefs
• Coral reefs aren't affected by changes in temperature and acidity

The main human activity that releases greenhouse gases is:

• using bottled water
• burning fossil fuels
• texting on cellphones
• eating meat

Water vapor is a greenhouse gas

• True
• False

Melting of glaciers and polar ice caps....

• will result in cooler temperatures in the Arctic
• will result in sea-levels rising
• Will have no effect on ecosystems
• None of the above

Energy transmitted as rays, waves, or in the form of particles is:

• radiation
• kinetic energy
• heat
• chemical energy

The outermost layer of the atmosphere, where the auroras occur, is called the

• troposphere
• thermosphere
• mesosphere
• stratosphere

The second layer of the atmosphere up from Earth, where the ozone layer is that protects us from harmful UV rays, is the:

• thermosphere
• stratosphere
• troposphere
• mesosphere

What gas from the list below is a cause for global warming?

• Urethane
• Oxygen
• Carbon Dioxide