Are stairs a type of inclined plane?

The us government wants to allocate billions of dollars in the next 10 years to assure our future energy security. the funds will be spread among a variety of possible energy resources. where do you think the government should put the greatest support: solar energy, wind energy, clean coal, oil exploration, gas exploration, or a combination of sources? are there other efforts that should be explored? support your position with cited information for both questions.

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

Blank liquids and gases exert a buoyant force on objects placed in them