Answer: Ozone is considered as chief polluting gas.
Explanation:
The ozone is a ground level pollutant. It is a colorless gas. It causes irritation in the eyes and respiratory tract. It is one of the components of smog as it causes pollution in the atmosphere. It is produced by the two primary pollutants that are nitrogen oxides and volatile organic compounds when they react with the sunlight. The ozone makes the air irrespirable. It is the main cause of throat irritation, labored breath, pain in chest and also responsible for respiratory diseases. It reduces the body's ability against infection. The ozone depleting substances like aerosol, chlorofluorocarbon are widening the ozone depleting zone as halides present in these substances react with the ozone causing depletion. This allows the entry of harmful ultraviolet radiation penetrating the atmospheric layers.
Contrary to popular belief,the Mayans were not united as one empire is
<em>(A) TRUE.</em>
The <em>Maya</em> lived in three separate sub areas with distinct environmental and cultural differences.The Maya civilisation was never united,rather it consisted of many small states ruled by kings,each apparently centered on a city.At times, a stronger Maya state would dominate a weaker Maya state and be able to exact tribute and labour from it.
The Maya is a Mesoamerican civilisation noted for Maya script,the only known fully developed writing system of the pre Columbian America,as well as,for its art,architecture and mathematical and astronomical systems.
The Maya had <em>no central king ruling</em> their big empire.Instead,there were 20 different states,similar to ancient Greece city states.
Answer:
It's A
Explanation:
Communism isn't good for business so it must be A
You could name it two ways! You can either do IH or HI. Since there are only two letters, you can only rearrange or name IH 2 different times.
Hope this helps :)