Earth's biosphere

________ is the system that consists of living things.

• Geosphere

• Biosphere

• Atmosphere

• Hydrosphere

Only plants and animals are part of the biosphere.

• True

• False

All living things interact with biosphere by using its_________

• Sunlight

• Wind

• Water

• Natural resources

Renewable resources are those that can not be replaced and will run out.

• True

• False

Non renewable resources are those that cannot be replaced and will run out such as __________

• sunlight

• wind

• water

• crude oil

Humans are harming the natural resources through the following activities: (choose all that matches)

• Planting trees

• Building factories

• Throwing garbage in the sea

• Recycling garbage

Here is/are way/s that humans can do to protect the natural resources: (choose all answers that match)

• Organize groups to collect the garbage

• Use public transportation

• Turn the factories garbage to the sea

• Compost garbage to feed the plants

Endangered species are

• Animals or plants in danger of becoming extinct in the near future.

• Plants and animals living in a natural environment.

• Species that recover their number after have suffered over hunting.

The loss of a species of animal, bird, plant, etc for all time

• Endangered species

• Extinction

• Food chain

What is not a cause of extinction?

• Habitat loss

• over-hunting

• natural disasters

• animals eat too much