When do you start to pair up the electron dots

Which statement names a physical property of wood? wood does not rustwood can burnwood can rotwood is softer than coal

As the earth formed, the force of gravity increased due to increased mass. what effect did this increased gravity have on the forming planet?

Which is an innovation of gymnosperms? gymnosperms are the first seed plants. gymnosperms are the first flowering plants. gymnosperms are the first vascular plants. gymnosperms are the first spore plants.