Answer:
When looking north, you see stars appear to move in circles.
Explanation:
- The motion of stars in northern hemisphere shows the circular motion that follows the path around the Polaris.
- As it takes 24 hours to complete one full circle, so during a night less than 12 hour, we see only certain part of path i.e. stars moving in an arc.
- And if you're facing north, they are moving from west to east.
- So depending upon the time of observation the stars may take the path of an arc or the full circle.
Commercial Farming technology degrades natural biodiversity
Soil fertility is lowered by
agriculture. It lowers fertility by removing soil nutrients incorporated
in the harvested crops. Cultivation, especially with heavy machinery
... This is where you will find your answer in this page just read it. Soil Fertility and ConservationSoil fertility---the ability to support plant. It is not enough to describe the soil as a country's greatest source of wealth; it is more ... to plant growth and development and are a good index of soil fertility. ... on steeper and steeper slopes lowered soil productivity - both in the hills and in ...