Read and complete the sentences with the words. life, needs, ecosystem, changed, future, invented, technology, sources
Human environment is a man-made en-invented new technologies. Communication
vironment. It was (1) ... by humans for their became easier and fast across the world.
needs. Before (2)
appeared, humans They formed a man-made (5)
lived in the natural environment. They had
We need a balance between the natural
an environment-friendly life. With time, their and man-made environment. If we use the
(3) ... grew and grew. Humans learnt new natural (6) wisely, we can have a healways to change their environment for their thy balance. We should use our resources
needs.
wisely and learn to save them. Natural reThey learnt to grow crops and animals, and sources like wood, minerals, water and air
build houses. They (4) the wheel, money, are important for (7) ..
If we do not use
trade and business. Transportation became them wisely, we may run out of them one
faster. It became possible after they had day. We should think about our (8).
Lesson 2 What are the alternative sources to fossil fuels?
it's not too late to solve these problems. We have the time, the money and even the technology to make our planet a better, cleaner and safer place. We can plant trees and create parks for endangered species. We can recycle litter. We can support green parties and put pressure on those in power. Together we can save the planet and all of us with it.