There are many causes of soil and land [blank_start]_______________[blank_end]. Some of the main causes are: [blank_start]_______________[blank_end], mining, factories and [blank_start]_____________[blank_end] thrown out by people. The [blank_start]_______________[blank_end] used in agriculture and the manure (poo) made by livestock (cows and pigs) [blank_start]_________________[blank_end] the soil. All the garbage that people throw away goes to [blank_start]___________[blank_end]. The waste in landfills produces a [blank_start]_____________[blank_end] gas called [blank_start]______________[blank_end]. This is one of the gases that get trapped in Earth’s atmosphere. Too much of these gases make Earth’s [blank_start]___________________[blank_end] go up. This is called [blank_start]____________[blank_end] warming.
Respuesta
pollution
agriculture
garbage
chemicals
contaminate
landfills
greenhouse
methane
temperature
global
Pregunta 2
Pregunta
When we waste food, farmers have to grow more food.
Respuesta
True
False
Pregunta 3
Pregunta
When farmers have to grow more food, what happens?
Respuesta
We eat more food.
Animals lose their land and have to find a new place to live.