1.Have people travelled to the Moon?
2. Have people walked on Mars?
3. Has the climate changed?
4.Have we protected the environment?
5. Has trees destroyed a lot of pollution?
6. Has the world stayed the same?
1.Have people travelled to the Moon?
2. Have people walked on Mars?
3. Has the climate changed?
4.Have we protected the environment?
5. Has trees destroyed a lot of pollution?
6. Has the world stayed the same?