Okay so i need to know some ethical issues that plasmid based transformation have. i have looked on almost every site and they are to complex for me to understand. so something simple and easy to be comprehended.

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