Answer: Common industrial contaminants include sulfur dioxide and other acids, heavy metals and industrial solvents. Iron and steel production and mining operations can also pollute water with ammonia, cyanide and arsenic.
Explanation:
The western United States, especially the southwest part of the country is mostly desert and semi arid...
Answer:
Explanation:
At the autumnal equinox.
At the equinox. , duration of day and night are equal all over the globe . It happens because sun is just over the equator , going towards the south .
After 6 months of night , day starts breaking in southern hemisphere. For next 6 months there is likely to be day in the south pole.
The sun will be seen near the horizon moving on a circular path all through the day parallel to the horizon without setting.
Answer:
The embryological data have advantage over DNA evidence.
Explanation:
- Embryology is the study of earliest phase of any organism i.e development and formation of embryos.
- The embryological data is very important because it give the proper information about the mechanisms that have both normal and abnormal development.
- Similarly the embryological data also helps in studying the evolution over the generations.
- The overall organization, its process of development can be properly known by embryology over DNA evidence.
