Iron attaches oxygen to what in our bodies? a. muscles b. teeth and bone c. red blood cells

Which describes how weathering and erosion are different? weathering is caused by water. erosion is caused by wind and ice. erosion transports sediments. weathering is a natural process.

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

Which situation is an example of not doing work? lifting a couch throwing a baseball running up stairs carrying a box