If baking soda hadn't been added would there been a source of carbon dioxide being introduced into water

Which spheres are involved when sedimentary rocks formed from parts of seashells at the bottom of the ocean? a.) biosphere, atmosphere, geosphereb.) geosphere, hydrosphere, biosphere c.) geosphere, exosphere, hydrosphered.) hydrosphere, biosphere, atmosphere

Explain the significance of meiosis in sexual reproduction

What class of levers is shown in this image?