environmental challenges

A pet bottle disappears in....years in nature

• A)100

• B)200

• C)300

• D)400

In the past decade,globally the fish population has decreased by....

• a)%75

• b)%50

• c)%25

• d)%10

What do cars, airplanes and trucks realise into air?

• a.carbon monoxide

• b.oxygen

• c.helium

• d.hydrogen

Which gas is a source of natural groundwater pollution?

• A) Helium.

• B) Krypton.

• C) Radon.

• D) Argon.

__ is a control method that removes microorganisms rather than inhibiting or killing them.

A. Boiling

B. Sterilization

C. Radiation

D. Filtration

• A. Boiling

• B. Sterilization

• C. Radiation

• D. Filtration

Which country in the EU has the highest biodiversity?

• A. Spain

• B. Germany

• C. Denmark

• D. Slovenia

If all the ice on Earth melted, the levels of the oceans and seas would rise by:

• A 7 meters

• A 2 meters

• C 6 meters

• B 4 meters

By how many degrees Celsius will sea temperatures rise in a decade?

• A 0,1

• B 0,2

• C 0,5

• D 1,0

Households pollute water sources by ...... waste into ponds, lakes and rivers.

• a) damaging

• b)losing

• c)dumping

• d)leading

How many species of plants and animals have scientists determined on Earth?

A. 1,5 million

B. 2 million

• A. 1,5 million

• B. 2 million

• C.3 million

• D. 4 million