Which atom is involved in giving your heart energy to beat?
carbon
gold
oxygen
iron

Which properties describe all matter?

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

Were does condensation occur? a) hydroshereb) lithosherec) boishered) atmosphere