Match the following definition with its concept:

- cutting or burning down all the trees in an area

Match the following definition with its concept:

- a farm where animals are kept inside, in small spaces, and made to grow or produce eggs very quickly

Match the following definition with its concept:

- consuming a combustible matter such as coal, oil, or gas

Match the following definition with its concept:

- animal and plant species becoming extinct

Match the following definition with its concept:

- temperature rise

Match the following definition with its concept:

- level of the surface of the ocean

Infinitive with and without "to"

Choose the correct answer:

- The police didn't let me_______ the building.

Infinitive with and without "to"

Choose the correct answer:

- She lent me the book _______ during the summer.

Infinitive with and without "to"

Choose the correct answer:

- You can't _______ in here.

Infinitive with and without "to"

Choose the correct answer:

- That's not a very nice thing _______ to a friend.

Infinitive with and without "to"

Choose the correct answer:

- Our teacher told us _______ more.

Infinitive with and without "to"

Choose the correct answer:

- I'm going _______ dinner with Tom.

Infinitive with and without "to"

Choose the correct answer:

- Children have a lot of love _______ .

Infinitive with and without "to"

Choose the correct answer:

- You should _______ to school by train, it's cheaper.

Verb prefixes and sufixes:

Insert the right verb prefixes into the spaces.

- I don't know what to do! My dog has ___appeared.

Verb prefixes and suffixes:

Insert the right verb prefixes into the spaces.

- Your answer is not correct. You have to ___write it.

Verb prefixes and suffixes:

Insert the right verb prefixes into the spaces.

- I'm sorry, I ___understood everything.

Verb prefixes and suffixes:

Insert the right verb prefixes into the spaces.

- Be careful about money so that you don't ___spend!.

Verb prefixes and suffixes:

Insert the right verb prefixes into the spaces.

- ___lock the door! Let me out!

Verb prefixes and suffixes:

Insert the right verb prefixes into the spaces.

- You can never ___run me! I'm a lot faster!

Answer the following questions:

- What do you call a substance that pollutes the air, water or soil?

Answer the following questions:

- What do you call the area that is inhabited by a particular species?

Answer the following questions:

- What is the most used renewable energy source in the world?

Answer the following questions:

- Which gas is responsible for global warming?

Answer the following questions:

- Which layer protects the Earth from UV rays?

Answer the following questions:

- What do you call renewable safe sources of energy?

Answer the following questions:

- Which material is biodegradable?

Answer the following questions:

- What do you call the rain that contains many chemicals and is harmful?

Say weather the following sentences are in the active or passive voice.

- My house was cleaned yesterday.

Say weather the following sentences are in the active or passive voice.

- They wrote an article on green transportation.

Say weather the following sentences are in the active or passive voice.

- Lots of computers were stolen from that shop.

Say weather the following sentences are in the active or passive voice.

- My father's company builds houses.

Say weather the following sentences are in the active or passive voice.

- The earthquake destroyed half the city.

Say weather the following sentences are in the active or passive voice.

- The police arrested the criminals.

Say weather the following sentences are in the active or passive voice.

- Laptops were invented in Japan.

Say weather the following sentences are in the active or passive voice.

- I have painted my bedroom green.

Complete the sentences with the synonym of the words in brackets:

- Maria's charity has reached the __________ (milestone) of having sent 1000 girls to school.

Complete the sentences with the synonym of the words in brackets:

- The __________ (current) frequency of freak weather events has really increased.

Complete the sentences with the synonym of the words in brackets:

- Portugal's births last year weren't __________ (to top) than 90 thousand children.

Complete the sentences with the synonym of the words in brackets:

- This is the third __________ (a row) winter that I haven't made a snowman.

Complete the sentences with the synonym of the words in brackets:

- Isn't it __________ (freak) when you have droughts in Europe and floods in Asia.

Complete the sentences with the synonym of the words in brackets:

- On the top list for people's lives and housing being __________ (disrupted) is wars.

Complete the sentences with the synonym of the words in brackets:

- I wish children in poor countries were forced to __________ (attend) to school until the age of 12.

Complete the following sentences:

- Reuse:

___________ your old clothes and toys. Other people will put it to good ________ .

Complete the following sentences:

- Reuse:

Shoe boxes, margarine _______ and _______ of jam can become good storages an even great _______ projects .

Complete the following sentences:

- Reduce:

_______ energy by turning _______ all your appliances' pilot light and switch to LED light _______.

Complete the following sentences:

- Reduce:

Cut back on water, by only turning on the _______ after you soap up to rinse.

Complete the following sentences:

- Recycle:

Use recycled _______ , thus reducing the number of trees that are cut down.

Complete the following sentences:

- Recycle:

Recycle metal cans, glass bottles and plastic boxes in the eco _______ , to reduce the need for more _______ materials.