Quiz #1

¿What is global warming?

• A natural disaster.

• The dangerous increase of the planet's temperature.

• The rising of sea water level.

• Something normal, nothing to care about.

Which are the main causes of global warming? (choose 2 options)

• Human activity.

• Forest existence.

• The coral reefs.

• The greenhouse effect.

For 2.5 million years the planet's climate has fluctuated among ice ages to warmer periods...

• True

• False

The Earth's temperature has been rising very fast the last century...

• True

• False

Earth's temperature is stable, does not matter what humans do

• True

• False

The greenhouse effect is a natural process produced by:

• H2O, O2, He (and others)

• CH4, CO2, NOx, CFC, (and others)

• Fe, Co, Ni, Na, (and others)

Plants can help to balance the greenhouse effect on Earth.

• True

• False

The greenhouse gases let sunlight pass through the atmosphere, but they prevent the heat that the sunlight brings from leaving the atmosphere.

• True

• False

What are the greenhouse gases?

• Gases that can trap Earth's heat.

• Gases produced by humans and other beings.

• Gases stored in the atmosphere

• All of the above

How does a greenhouse work?

• A greenhouse captures heat from the Sun during the day and keeps the inside warm during the night.

• A greenhouse is made of wood. If it captures heat, it may burn during the daytime.

• A greenhouse captures the snow during the winter and keep the inside cold during the summer.