Explanation:
Given the importance of oxygen for animals, researchers suspected that a sudden increase in the gas to near-modern levels in the ocean could have spurred the Cambrian explosion. ... This supported the idea of oxygen as a key trigger for the evolutionary explosion.
Answer:
The two natural factors are.
Rainfall and river
The two man made factors are
Canal and tube wells
The correct answer is letter D. Volcanism describes all the processes associated with the discharge of magma, hot fluids, ash, and gases. These specific events happen during an eruption of a volcano where hot materials come out from the core of the Earth. Volcanism is one of the many interesting studies of Earth Science.
Answer:
The questions that could be answered by a distribution map are:
A) Who are the victims of a certain type of crime?
C) How many people own homes?
D) Who can read and who can't?
Explanation:
Distribution maps are used to represent the spatial distribution of a characteristic or attribute on a map. They are very useful for identifying patterns. In the case of questions A, C, and D, a distribution map could help to show where people with a certain characteristic are located. For example, for option A, the map might show that people living in a certain area of town were the victims of a given crime.
Option C could not be answered by a distribution map because it is looking for a complex set of reasons that cannot be mapped out spatially.
C they show a similar design!
