Science has completely changed how we eat.
Long ago we could only eat what grew nearby.
If lots of insects and caterpillars ate the crops there was not enough for us.
If diseases killed the wheat or the potatoes - people starved and there was famine.
Science invented sprays to kill insects so that they wouldn’t eat our food.
Science was able to invent crops that are resistant to disease.
Because we have airplanes and fast engine-powered ships, we can eat food that is grown far away such as oranges and bananas . It gets here quickly before it goes bad.
Science can clear areas of forest so that more crops can grow.