Which action could be included in an accurate model of thermal convection in Earth's interior?A. Ridge formation where cold matter in the mantle is sinkingB. Seafloor spreading where convection currents meetC. Earthquakes where hotter matter is sinking beneath colder matterD. Subduction where tectonic plates are moving apart from one another

Which of the following warnings would an agricultural chemist tell a farmer who wants to recycle his or her own ammonia? recycling ammonia is a difficult process that sometimes takes weeks. recycling ammonia requires a degree in biochemistry or a related field. recycling ammonia can be harmful because it is highly flammable and toxic. recycling ammonia costs too much money considering the price of the necessary chemicals.