4º ESO Human activity and the environment

Global warming is created by natural factors

• True

• False

A rise in global temperature is expected to increase instances of malaria.

• True

• False

What is the main cause that provokes global warming?

• Use of water and resources

• Carbon dioxide emission by cars and industries

• Deforestation.

• Ocean pollution

It is important to fight against deforestation because:

• Forests and plants produce oxygen and absorb carbon dioxide.

• Trees are green, which is a nice colour.

• Forests and plants produce carbon dioxide and absorb oxygen.

CO2 is generated by

• Burning fossil fuels

• Incinerating solid wastes

• Raising livestock

• Wildfires

• All options are correct

Which gases destroy the ozone layer?

• CO₂

• O₂

• CFC's

• Nitrogen and sulfur oxides

Which gases are related to acid rain?

• CO₂

• O₂

• CFC's

• Nitrogen and sulfur oxides

Which gases are related to global warming? select the correct options

• CO₂

• CH₄

• CFC's

• Nitrogen and sulfur oxides

The accumilation of pollutants in trophic chains is called

• Acid rain

• Eutrophication

• Bioaccumulation

What causes may lead to negative impacts on soil?

• Deforestation

• Overgrazing

• Overuse

• wildfire