Helped communities communicate and learn together, helped with teamwork and sharing to keep the others alive and well
Answer:
Explanation: 1.Recycling is very important as waste has a huge negative impact on the natural environment.Harmful chemicals and greenhouse gasses are released from rubbish in landfill sites
Toy gun - Plastic
Ballpen - brass
lamp shade - steel/brass
Coin purse - paper
The world's economies interact with each other by trading. For example, if oil is easier to access in Saudi Arabia than America, it will be less expensive, so we trade. The economies affect one another by giving each other easier access to different resources and products.
I think its d all of the above