You may take the proctored final exam whenever you are ready.Study some basic scientific concepts while learning what the study of Earth science encompasses.At the end of each chapter, you can complete a chapter test to see if you're ready to move on or have some material to review.Once you've completed the entire course, take the practice test and use the study tools in the course to prepare for the proctored final exam.Geology describes the structure of the Earth beneath its surface, and the processes that have shaped that structure.It also provides tools to determine the relative and absolute ages of rocks found in a given location, and also to describe the histories of those rocks.Like all squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales.
In practical terms, geology is important for mineral and hydrocarbon exploration and exploitation, evaluating water resources, understanding of natural hazards, the remediation of environmental problems, and for providing insights into past climate change.
Earth Science 101: Earth Science has been evaluated and recommended for 3 semester hours and may be transferred to over 2,000 colleges and universities.
Expert instructors present this material in an easy-to-follow manner, and lessons are accessible at all times, from any device, so you can study at your own pace as you get started on your degree.
To accommodate their narrow bodies, snakes' paired organs (such as kidneys) appear one in front of the other instead of side by side, and most have only one functional lung.
Some species retain a pelvic girdle with a pair of vestigial claws on either side of the cloaca.
This article collects evidences that place a lower limit on the age of the Universe beyond the 6,000 to 10,000 years asserted by most Young Earth creationists (YECs) and the literalist Ussher chronology.