Endangered species are plant and animal species which are in danger of .....
EXTINCTION
15
Over 8.300 plant species and 7.200 animal species around the globe are ............... with extinction.
THREATENED
25
Many thousands of animal and plant species become ...................... before biologists can identify them.
EXTINCT
20
The primary causes of species extinction are ................ destruction, .................. exploitation and pollution.
HABITAT, COMMERCIAL
25
The drainage of wetlands, cutting of forests, .............................. and road and dam construction have destroyed or seriously damaged natural habitats.
URBANIZATION
10
Since the 1600s, worldwide commercial exploitation of animals for good and other products has seriously reduced the number of .......................... species.
RARE
15
Toxic chemicals in the air and land, contaminated water and increased water temperatures have also driven many species to the .............. of extinction.
VERGE
5
Plant and animal extinction leads to a loss of .............
BIODIVERSITY
20
.................. biodiversity is important for us in many ways.
MAINTAINING
15
Humans depend on species ................. to have food, clean air and water, and fertile soil for agriculture.
DIVERSITY
15
We ........... .................. from the many medicines and other products that biodiversity provides.
BENEFIT GREATLY
15
Different ............. ................... have been made in order to save endangered species.
CONSERVATION EFFORTS
25
The Red List - a global list of endangered and .................. animal species - has been introduced to raise people's ............... of conservation needs.
VULNERABLE, AWARENESS
20
Governments have enacted laws to protect wildlife from commercial trade and ...............
OVERHUNTING
10
A number of wildlife ................. ..................... have been established so that a wide range of endangered species can have a chance to survive and develop.
HABITAT RESERVES
25
.......... is the existence of a large number of different kinds of animals and plants which make a balanced environment.
