Answer:
Ozone depletion means that more of the sun's rays can reach earth. One particular troublesome ray is UVB radiation. It has many harmful effects on humans which include:
- DNA damage
- Melanoma
- Other skin cancers.
- Cataracts
- Immune system problems.
Even when humans are not affected directly, we are indirectly affected by the planet being affected. For instance, ozone damage leads to less agricultural productivity as well as adverse effects on aquatic life. Humans rely on both of these for food so ozone depletion is targeting our food sources as well.
Answer:
escavation
Explanation:
During excavation, archaeologists often use stratigraphic excavation to remove phases of the site one layer at a time. This keeps the timeline of the material remains consistent with one another.
Sinkholes and caves may be right
So if you think of a pyramid, the highest rank is on top, the order goes
1. Brahmins (highest rank or most respected) - priests, and the academic class
2. Kshatriyas - Rulers, administrators, and warriors
3. Vaishyas - artists, tradesmen, farmers, merchants
4. Shudras - commoners, peasants, servants
5. Dalits/outcastes/untouchables - street sweepers, latrine cleaners
Hope this helped a bit!
Most commonly at convergent plate boundaries