GRADE 12 - UNIT 10

....... is the act of preventing something from being lost, wasted, damaged or destroyed.

Humans depend on species ................. to have food, clean air and water, and fertile soil for agriculture.

A number of wildlife ................. ..................... have been established so that a wide range of endangered species can have a chance to survive and develop.

...... is a situation in which a plant, an animal, a way of life etc, stops existing.

Toxic chemicals in the air and land, contaminated water and increased water temperatures have also driven many species to the .............. of extinction.

Plant and animal extinction leads to a loss of .............

Toxic chemicals in the air and land, contaminated water and increased water temperatures have also driven many species to the .............. of ...............

..... ........ ............ is a global list of endangered and vulnerable animal species.

Many thousands of animal and plant species become ...................... before biologists can identify them.

We benefit greatly from the many medicines and other products that ............... provides.

The drainage of wetlands, cutting of forests, .............................. and road and dam construction have destroyed or seriously damaged natural habitats.

We ........... .................. from the many medicines and other products that biodiversity provides.

Laws have been ....... to protec wildlife from ............. ............... and overhunting.

Governments have enacted laws to protect wildlife from commercial trade and ...............

The Red List - a global list of endangered and .................. animal species - has been introduced to raise people's ............... of conservation needs.

.....is the natural environment in which a plantor animal lives.

Over 8.300 plant species and 7.200 animal species around the globe are ............... with extinction.

Endangered species are plant and animal species which are in danger of .....

Since the 1600s, worldwide commercial exploitation of animals for good and other products has seriously reduced the number of .......................... species.

.................. biodiversity is important for us in many ways.

Different ............. ................... have been made in order to save endangered species.

.......... is the existence of a large number of different kinds of animals and plants which make a balanced environment.

The Red List has been introduced to raise people's .............. of conservation needs.

The primary causes of species extinction are ................ destruction, .................. exploitation and pollution.