What conclusion would you make about the U. S aurface temperature for the past 20 years​

The carbon cycle is best defined as a process in which a. carbon changes from inorganic forms to organic forms and back b. carbon is changed into other elements such as oxygen or nitrogen c. carbon is continually created from the sun’s energy by plants d. carbon is consumed and regenerated from other elements such as oxygen and nitrogen

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic

What is the most important inorganic material for livings things? ! due tomorrow!