Answer:
because every year there is a new strain of flu
Explanation:
One of the methods used widely to calculate the distance of nearby or closer objects in astronomy is Parallax. The distance of the stars are usually expressed in light years but the unit of distance is parsec or parallax second.
1 Parsec = 3.26 light years
Astronomers are not able to measure the parallax of a star that is a million light years away because the star is too far and the distance with which the start appears to move is too less to be calculated accurately.
<span>the study of living organisms, divided into many specialized
fields that cover their morphology, physiology, anatomy, behavior,
origin, and distribution.</span>
Answer:
Trend analysis
Explanation:
Trend analysis is a technique which is used during technical analysis in the prediction of the prices of future stocks based in the currently observed trends. The basic idea behind the trend analysis is the success or failure of a trade in future can be estimated by the conditions of the trade in past. Thus in this analysis the upward or downward growth trend of a business is used in prediction of future of business and in this way it is helpful for the investors to be sure that they should invest their money in the business or not.
