Which of these describes a human activity that uses up a non-renewable resource? building new roads that cause topsoil to erode

chopping down trees from the forest for heating homes

car engines consuming large amounts of fossil fuels

pollutants on roads washing into streams during rainstorms

Which compound contain an iron with a 3+ charge

Which statement best describes what happens when molecular compounds melt

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.