1
This verb means "to change slowly over a long period of time."
Evolve
If an animal cannot easily be harmed by a disease, it is ______ to it.
Immune
Which word fits?
"Plastic pollution is a serious ______ for marine life."
concern
Choose the correct answer.
"There isn't ______ evidence to prove the claim."
A. enough of
B. enough
B
Complete the sentence.
"The ancient painting needs ______ before it can be displayed."
to be restored
If a species is in danger of disappearing, it is ______.
Vulnerable
Which preposition completes the phrase?
affected ___ pollution
by
Change to use a passive infinitive.
"They expect people to recycle more."
People are expected to recycle more.
Rewrite using a passive infinitive.
"They want someone to classify the new species."
They want the new species to be classified.
Rewrite using a passive infinitive.
"They expect scientists to discover new species in the rainforest."
Scientists are expected to discover new species in the rainforest.
Complete the sentence.
"There isn't ______ water for everyone."
enough
Rewrite using the passive infinitive.
"They need to protect the forest."
The forest needs to be protected.
I help protect habitats, endangered animals, and natural resources. What am I?
conservation
Correct the mistake.
"These birds are harmful for the environment."
These birds are harmful to the environment.
Correct the mistake.
"The animals need be protected from illegal hunters."
The animals need to be protected from illegal hunters.
Scientists say whales are mammals because they are ______ as mammals.
Classified
This noun means "a duty or responsibility that you must do."
Obligation
Complete the collocation.
"Many sea turtles are threatened ___ plastic waste."
by
Which vocabulary word best completes the sentence?
"Many amphibians are especially ______ because changes in their habitat can quickly reduce their populations."
vulnerable
Which sentence is correct?
A. The report needs be finished today.
B. The report needs to finish today.
C. The report needs to be finished today.
D. The report needs being finished today.
C
Which preposition completes the phrase?
protected ___ dangerous chemicals
from
Correct the mistake.
"There aren't enough of money to buy the equipment."
There isn't enough money to buy the equipment.?
Which vocabulary word best completes the sentence?
"Some insects have ______ resistance to certain pesticides after many generations."
evolved
Rewrite the sentence using enough of.
"There wasn't sufficient food for all the rescued animals."
There wasn't enough of the food for all the rescued animals.
Rewrite using a passive infinitive.
"They want everyone to follow the new safety rules."
They want the new safety rules to be followed.