Atmosphere - Initial assessment

What phenomena happen in the atmosphere?

• The flight of spacecrafts

• The movement of the Moon

• Climate phenomena (storms, rain, clouds...)

Why does a sailboat move?

• Because of gravity

• Because of Earth's rotation movement

• Because of the wind that is produced in the atmosphere

What are the most abundant gases in the atmosphere?

• Oxygen, hydrogen and nitrogen

• Nigrogen, oxigen and carbon dioxide

• Water steam, oxigen and noble gases

The atmosphere, in its extension, is...

• Different depending on the height

• Equal all through its thickness

• only different at the lowest zones

The layers of the atmosphere are

• Exosphere, troposphere and ozone

• Ionosphere, stratosphere and clouds

• Exosphere, ionosphere, mesosphere, stratosphere and troposphere

Why are atmosphere's gases needed for Earth's life?

• For nothing special

• For photosynthesis and breething

• Only for breething

Wind is ...

• Air

• Moving air

• Atmospheric pressure

Why does a ballon rise if you let it go?

• Because it is moved by the wind

• Because its density is lower than the air that surrounds it

• Because it weights less than the air surrounding it

The atmosphere is

• A small part of the Earth

• The gaseous layer that surrounds the Earth

• The oxigen of the air