The inner planets (in order of distance from the sun, closest to furthest) are Mercury, Venus, Earth and Mars.
I believe it’s supposed to be in the summer.
Do you have a question here?
Explanation:
Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body.
Answer:
1. A
2. A
3. i dont know
4. D
5. E
6. B
7. D
8. B
9. i think skin? i dont know
10. B
11. C
12. i dont know
13. A - i think
14. A
15. B
16.i dont know
17. A
18.D
19. D or C
20. C
