Can someone help me with both of them

For Question 36, the answer is Customary. Customary means commonly practiced, used, or observed. Since Cellphones have become one of the most commonly used objects, for communication, it is customary.

For Question 37, the answer is Professional. Professional refers to things such as being qualified (however defined) and practising in a definable area, having expertise based on a deep level of knowledge. This means acting as though you are knowledgeable in being proper.

mark as brainliest if i helped. good luck :) !!!

Carbon-14 has a half-life of 5,730 years and most igneous rock is older than that.