throw it in the trash
Solar power would be the best way to generate energy for use on Mars.
The best thing to travel in would be a space ship. It is a long way to the planet of Mars.
Maybe you could recycle them.
Recycle and reuse aluminum
The best way would probably be to chemically decompose the carbon dioxide into carbon and oxygen.
say like there is a fashionable car you can rethink how to take it appart so you can recycle it You have to think how you could recycle the object and discover which is the best way to recycle it.
Locating a buy and sell company for used soda machines is the best way to recycle a used one that you may not need anymore.
Rubber can be difficult to recycle because of how the material has to be processed. The best way to recycle rubber, such as tires, is to take it to the local recycling center or contact a business that manufactures rubber mulch to put on playgrounds.
recycle and reuse aluminum
Mars.
do no litter recycle go on buses, or ride a bike
You can donate them to an organization. Another good idea would be to give them to someone who needs them or you can just take them to your local recycling center.