ktra cuối kì 2 12

Many species are threatened in the wild due to habitat ________ by man.

• destroyable

• destructive

• destroy

• destruction

We need to prepare for our biology assignment about _____________plant species.

• A. endangered        

• danger    

• C. endanger

• dangerous

Every year, in Africa a lot of elephants are _________ for tusks

• poached

• protected

• evolved

• endanger

Preserving animal and plant species helps to __________ biodiversity.

• discover

• reduce

• attribute

• maintain

.Environmentalists try to persuade the governments to see the need to preserve biological _________.

• diversity

•  direction

• similarity

• pollution

Animal and plant extinction can ruin the _________ and reduce biodiversity.

• elimination

• ecosytem

• effort

• pollution

Mammoths and dinosaurs used to live on our earth quite a long time ago, but they are now_____.

• endangered

• survive   

• extinct     

• rare

Increasing trade ivory products is a threat to the __________  of elephants.

•  revolution

• development

• survival

• involvement

Humans should be held responsible ____ endangering species or driving them to extinction.

• up

• for

• of

• with

Extinction is just a part of the evolutionary process and we must not interfere ____ it.

• over

• in

• at

• with