Review Unit 6

Choose the letter A, B, C or D the word that has the underlined part different from others.

1. affect
2. algae
3. aquatic  
4. perm anent

Choose the letter A, B, C or D the word that has the underlined part different from others.

1. school  
2. cholera
3. chemistry
4. machine

Choose the letter A, B, C or D the word that has the underlined part different from others.

1. litter  
2. light
3. visual    
4. radiation

Choose the letter A, B, C or D the word that has the underlined part different from others.

1. radioactive  
2. pollution
3. contaminate
4. convey

Choose the letter A, B, C or D the word that has the underlined part different from others.

1. billboard
2. loss
3. cholera   
4. fox

Choose the letter A, B, C or D the word that has the underlined part different from others.

1. earplug
2. hear  
3. pear 
4. clear

Choose the letter A, B, C or D the word that has the underlined part different from others.

1. aquatic   
2. cause
3. effect 
4. race

Choose the letter A, B, C or D the word that has different stress pattern from others.

1. pollutant   
2. untreated 
3. permanent
4. aquatic

Choose the letter A, B, C or D the word that has different stress pattern from others.

1. affect
2. poison 
3. thermal
4. visual

Choose the letter A, B, C or D the word that has different stress pattern from others.

1. litter 
2. effect 
3. earplug 
4. groundwater

Do you know what is the cause __________ pollution?

1. of   
2. in
3. on 
4. for

My mother has to measure blood __________ every month

1. billboard 
2. pressure 
3. groundwater   
4. earplug

__________ pollution is harmful or annoying level of noise, as from vehicles, industry activities, etc.

1. light 
2. visual 
3. soil   
4. noise

Parents should teach children not to __________ wastes on the road

1. litter 
2. poison 
3. cause 
4. measure

I can’t hear your voice __________ I’m wearing an earplug

1. although 
2. due
3. however 
4. because

His grandfather made him __________ hard when he was small

1. study 
2. to study 
3. studying 
4. studied

This picture __________ the contamination of ground water.

1. illustrate     
2. illustrating
3. illustrates 
4. illustrated

Could you list some non-point source __________?

1. pollution
2. pollutants 
3. polluting 
4. polluted

Scientists has just come up __________ a solution to hearing loss

1. to 
2. on 
3. with
4. down

If we dump a plastic into the ground, it __________ a long time to disappear.

1. will take 
2. take 
3. took 
4. takes