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(n) the work, business or study of farming: I'm thinking of studying agriculture.
(v) to understand the true nature of a situation, and realise why it is important or serious: I'm not sure you appreciate how important this is.
(v) to be grateful for something: I really appreciate your help.
(n) an event that causes a lot of damage or makes a lot of people suffer: Many people lost their lives in the catastrophe.
(n) a plant grown for food, usually on a farm: Coffee is an important crop in Brazil.
(n) a long period of time when there is little or no rain and crops die: The drought means that there's an increased risk of fire.
(v) to leave a building or other place because it is not safe: When the alarm went off, everyone evacuated the building.
(v) to use natural resources such as trees, water or oil so that you gain as much as possible: We could make a lot of money if we exploit our natural resources in the right way.
(v) to treat someone unfairly in order to get some benefit for yourself: In some countries, children are exploited in factories.
(n) a serious lack of food that continues for a long time and causes many people in a country to become ill or die: We're raising money to help victims of the famine.
(v) if water floods a place, it covers it: The river flooded the whole city.
(n) a large amount of water that covers an area that was dry before: The flood caused millions of euros of damage.
(n phr) fuels such as coal or oil, made from decayed material from animals or plants that lived many thousands of years ago: Burning fossil fuels gives off carbon dioxide.
(n phr) an increase in the average temperature of the Earth: It's difficult to deny that global warming is really happening.
(n) green plants that are growing somewhere or used as decoration: /like living here because there's quite a lot of greenery.
(n) the type of place that an animal normally lives in or a plant normally grows in: The panda is threatened by the disappearance of its habitat.
(v) to collect a crop from the fields: They were harvesting the grapes when we were in France.
(n) the time when a crop is collected: Everyone helps during the harvest.
(n) a violent storm with extremely strong winds and heavy rain: A hurricane is expected to hit the coast this evening.
(n) a natural tendency to behave in a particular way that people and animals are born with and that they obey without knowing why: Birds build nests by instinct.
(n phr) something very bad that happens and causes a lot of damage or kills a lot of people: It's not possible to prevent most natural disasters.
(n) things such as coal, trees and oil that exist in nature and can be used by people: The country's main resource is the vast oil fields.
(adj) if something is scarce, there is not very much of it: Badgers are becoming increasingly scarce in Britain.
(n) a plant or animal group whose members all have similar general features and are able to produce young plants or animals together: Scientists have discovered a new species of monkey.