4ºA SCIENCE - MARTES 4 DE ABRIL 2014

1. What do people get when they work?
   People get money for the work they do, a salary.

2. Who forms the active population?
   The active population is made up of workers and unemployed.
   Who form the inactive population?
   The inactive population is made up of children, students, retired people and homemakers.

3. Match the correct sentence halves:
   There are three... … sectors of economic activity.
   Workers and the unemployed form... … the active population.
   Homemarkers, students and retired people form... … the inactive population.

5. What helps arable farmers to grow a lot of crops?
   They use:
   1. Machines
   2. Greenhouses
   3. Automatic irration systems.

6. What happens to the crops?
   - Some crops go to supermarkets and markets.
   - Other crops are used to the food industry to produce: preserves, frozen food, olive oil...

7. Which products come from livestock farming?
   The main products are:
   - Meat and cold meat
   - Milk
   - Yoghurt
   - Cheese
   - Eggs

8. What tasks does a fishermen have to do?
   Fishermen have to:
   Before going to the sea:
   1. Prepare the boat and fishing equipment.
   When they come back:
   2. Sell the fish at the market.

9. What does the mining industry do?
   The mining industry:
   1. Extracts minerals from under the ground.
   2. Involves producing metals and energy.

10. What happens in the manufacturating industry?
    The manufacturating industry transforms raw materials into manufacturating products.

11. Workers in the construction industry:
    Architects, builders, carpenters and plumbers. 
    
    
    ESTO ES UN REPASO. NO SIGNIFICA QUE ESTAS ONCE PREGUNTAS SEAN LAS DEL CONTROL. HAY ALGUNAS QUE ESTÁN Y OTRAS QUE NO.
    OS RECOMIENDO QUE REPASÉIS TODO ESPECIALMENTE LOS EJERCICIOS QUE TIENEN TABLAS...