The answer is true.
A placer deposit is a deposit of earth, sand, or gravel formed due to the differential settling of the denser, heavier components. The placer contains particles of valuable mineral and it is found usually in the bed of a river or lake.
When a biologist counts the number of zebras in a population each year and notices an increase in the zebra population, this would be an example "of <span>observation"</span>
These are sources of very good cavier. The beluga is actually a whale, while the osetra is a sturgeon. The sevruga is also a sturgeon.
Because the common cold is cause by a ‘virus’.......
The answer is VIRUS