Recalling InformationAfter reading the selection, tell which of the following statements about oil are true and which are false. Correct the false statements to make them true. 1._______ Crude oil is a black heavy liquid. 2._______ Gasoline is the main product of crude oil. 3._______ Natural gas can not be found with petroleum. 4._______ Hydrogen and carbon are two main elements crude oil is made up of. 5._______ In prehistoric days often earthquakes and volcanoes didn't take place. 6._______ Many plants and billions of strange animals were buried deep under the earth's surface as a result of eruptions. 14 Chapter One
10 Oil was formed in some of the earth's layers of rock and trapped in an oil pool along with certain amount of natural gas. Sandstone and limestone are hard rocks. Oil found in different areas doesn't differ.
|
