C. winter solstice because if the North is having summer, the south would be having the opposite due to the direction the earth is tilted in orbit
They form natural gas or fuel and coal.
The mass of a tree is primarily carbon. The carbon comes from carbon dioxide used during photosynthesis. During photosynthesis, plants convert the sun's energy into chemical energy which is captured within the bonds of carbon molecules built from atmospheric carbon dioxide and water.
Alternative hypotheses have to be tested to know if they are incorrect or correct. It would be Answer D.
14. A. Pathogens. Includes all types of harmful organisms.
15. A. Immune.
16. C.
17. A.
18. D.
19. A.
20. D.
