Changes in which of the following is the primary driving force behind mechanical weathering? a. acidity b. salinity c. pressure d. temperature

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

What organ is the first to receive nutrients that have been absorbed from the digestive tract?

If a grape were placed in a hypertonic solution what would happen and why?