Answer: Scientists know that the Colorado River carved Grand Canyon. ... The age of the river falls between the rocks determined to be older than the river and those determined to be younger. Through this method, scientists have estimated an age for the river, and thus the canyon through which it flows, of 5-6 million years.
Explanation:
The dice has 6 sides so 100 divided by 6 is 16.66
90 - 29 = 61 therefore b=61 because the red square shows that that angle is 90 degrees then minusing 29 degrees from that would give you 61 degrees
Hard minerals are one of the main conditions that lead to a slower rate of weathering.
Rocks are made from different minerals and each mineral has different degree of hardness. Therefore, rocks made from <em>extremely hard minerals keep colder</em> and resist longer to weathering changes than the ones made from soft minerals.
Explanation:
Many geographers use the six essential elements to organize their study.
The World in Spatial Terms.
Places and Regions.
Physical Symptoms.
Human Systems.
Environment and Society.
Uses of Geography.
