The answer is Pennsylvanian. I worked on this before. The Pennsylvanian era is a subperiod of the Carboniferous Period. i really hope this helps :)
GPS, Glonass are the most popular
==> the object's mass; ==> how close you can get to its center.
Answer
Physical weathering weathering is is breaking breaking up up rocks rocks by by force, force, while while chemical weathering weathering involves involves chemical chemical processes.
Explanation:
- Physical weathering refers to the mechanical weathering that takes place due to the freezing and thawing go the rocks which are exposed to hot and cold temperatures of the day and night
- An example of physical weathering is the onion peel weathering of rocks.
- While chemical weathering is the weathering by addition of oxygen, water and carbon to rock minerals.
