Would anyone like to join my zoom

Which experiment would most likely contain experimental bias ?

Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above

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