On the picture shown below a represents a Cara stick of only geocentric model B represents a characteristic common to both geocentric and heliocentric models ,See represents a Characteristic of only heliocentric model And d represents a Characteristic which the geocentric and heliocentric models do not have. —Under which label will the characteristic astronomical bodies orbit around a central
Object in space. Plz help

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.