Relevant: It measures an important part of an objective or output;
<span>Objective: </span>If two people measure the same indicator using the same tool, they should get the same result. The indicator should be based on fact, rather than feelings or impressions (another way to say this is to say that it should be Measurable);
Available: Indicators should be based on data that is readily available, or on data that can be collected with reasonable extra effort as part of the implementation of the (sub-) project.
Realistic: It should not be too difficult or too expensive to collect the information (related to the next one in the list);
Specific: The measured changes should be attributable to the project, and they should be expressed in precise terms
The answer is parietal cells because they secrete hydrochloric acid in the stomach.
One reason why it's important to collect evidence from many fields is that the methodology of each field can introduce a bias through its measurement methods.
For example, imagine that we find out that our method of sequencing DNA is proven to be wrong - if we collect information from many different fields, then this will not invalidate the evolutionary theory, as evidence from other fields still supports it.
The answer is; warming of ocean water in the east of the Pacific Ocean close to the western coasts of South America.
The warming of the oceanic waters causes a current that pushes the warm waters eastwards of the Pacific Ocean at the equator. This counters and overpowers the prevailing trade winds that blow westwards. The currents bring in storms on the West coast of South America as the currents exchange heat with the atmosphere .