Answer:
The following sequence of events shows how Mesopotamia developed: People settled where crops could grow. The population grew. Villages and cities formed.
Here are some statements that is correct about adaptive radiation is :
-it occur within a single lineage
- In adaptive radiation, organisms will rapidly diversify from their ancestral species into several forms
- Usually happen because of a changes in the Environment or resources
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When a employment selection instrument is related to job success, the instrument is said to have validity.
Cardiopulmonary resuscitation or most commonly referred to as CPR is administered as an emergency procedure and combines chest compression for artificial ventilation. Those who received this before the arrival of the emergency personnel are more likely to survive. Thus, the answer is the second choice.
The primary cost component for American scheduled airlines is fuel, which accounts for the majority of operational expenses.
<h3>
What are fixed and variable costs for an airline?</h3>
In contrast to variable costs, which change over time, fixed expenses remain the same. Variable costs, which include things like fuel, oil, maintenance, landing fees, etc., on the other hand, are subject to change. The fixed costs do not change regardless of how much time you spend flying your aircraft.
<h3>
What are aircraft direct operating costs?</h3>
The term "direct operating cost" (DOC) refers to expenses that are directly connected to running a flight, such as flight attendant pay, aircraft fuel and oil, lease rental or depreciation, maintenance costs, insurance premiums, ground handling, navigational fees, landing and parking fees, and in-flight catering services.
Learn more about operating cost: brainly.com/question/15699967
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