The answer is because and since. A subordinating conjunction joins a subordinate condition to a fundamental statement. The accompanying is a rundown of the most widely recognized subordinating conjunctions. A qualifier condition is constantly presented by a subordinating conjunction. A thing statement and descriptive word condition in some cases are.
A low pitch sound example would be like a crocodile. They can produce sound so low for the human ear to hear. Thunder can also produce exceptionally low pitched sounds that are felt much as they are heard.
Bio means life
Geo means earth
Chemical is a substance produced or used by chemistry.
And cycle is a series of events that are regularly repeated in the same order.
There are more than one definitions if the last two but I picked the ones I thought were best. This is my guess. Hope I helped!