NaHC3 is an example of what

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 follow describes a disadvantage secondary sources have compared to primary sources?

3test questions with answers on incomplete dominance