What is the best synonym of the word 'productive'?

• Worn-out

• Fertile

• Excessive

• Erosion

Which word means 'sự thoái hóa'?

• Exceed

• Loosen

• Deteriorate

• Proclaim

'Semi-arid' land is...

• Full of trees and rivers

• Dry but not completely desert

• Always flooded

• Covered in snow

What does 'irreversible' mean?

• Easily changed

• Can be improved

• Cannot be reversed

• Easy to fix

What is 'Chartism'?

• A weather pattern

• A war strategy

• A political movement

• A religious practice

Which of the following words means 'hạn hán'?

• Erosion

• Drought

• Petition

• Cab

'The loss of topsoil' has the closest meaning to:

• Having no food

• Soil erosion at the surface

• Losing plants

• Growing more trees

What is the meaning of 'cab' in historical British English?

• A kind of boat

• A nobleman

• A horse-drawn carriage

• A train

What part of speech is 'excessive'?

• Verb

• Adjective

• Noun

• Adverb

'Proclaim' is closest in meaning to:

• Hide

• Announce

• Refuse

• Forget