When you ask the question "Has this author been cited in other resources?" you are evaluating the relevance of the resource. You cite a source in order to get a stronger picture of its intellectual value. And if the author (the source) you cited has been cited in other resources too, this means that the source is reliable (is able to be trusted), you are evaluating the reliability of the source.
There are several reasons why you should cite resources in your works: to proof your thesis, to show proper research and many more.
Answer:
Average atomic mass = 21.38 amu.
Explanation:
Given data:
Mass of first isotope = 21 amu
Abundance of first isotope = 62%
Mass of second isotope = 22 amu
Abundance of second isotope = 38%
Average atomic mass = ?
Solution:
Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass) / 100
Average atomic mass = (62×21)+(38×22) /100
Average atomic mass = 1302 +836 / 100
Average atomic mass = 2138 / 100
Average atomic mass = 21.38 amu.
Answer:
Evaporation- Water moves from liquid in lakes and oceans to gas in atmosphere
Condensation- Water moves from gas to the atmosphere into liquid in clouds
Precipitation- Water falls back to earth in liquid form (Not just liquid though- Rain, freezing rain, hail, snow,)
Explanation:
A food chain shows a single connected path of energy flow through an ecosystem. It shows the different levels of eating in an ecosystem. Both a good web and a good chain include a number of organisms including both producers and consumers. A food chain is very simple while a food web is complex and consists of a number of food chains. In a food chain each organism has only one consumer or producer.
site where the cell synthesizes new protein molecules
