It made everybody separated and it caused different societies to die down and not be successful.
Answer:
principle of superposition
Explanation:
Principle of superposition -
According to the principle of superposition , the positioning of the layer are in a manner that , the youngest layer is near to the surface of the crust , where as the oldest layer is deep inside from the surface of the crust , is referred to as principle of superposition .
This method enables to determine the age of the layers according to their placement from the crust .
Hence , from the given information of the question ,
The correct answer is principle of superposition .
limited access to public services like health and education
Answer:
True, several ecosystems have been damaged thus conserationalist focus on protecting several species.
Explanation:
- As the ecosystem is not only a part of land found on the earth it involves the entire system of the mountain to oceans to the atmosphere to the food web and even the humans. Thus ecologists and biologists are aware of the fact that man for his selfish needs has destroyed the natural carrying capacity of the ecosystem beyond repair.
- Thus conservationists focus on protecting the entire chain of species as all are linked to the same biotic community and hence live in harmony and coexistence of each other.
- By keeping these species protected the balance of energy flow in the ecosystem will remain stable and population of these species will continue to grow thus they focus on the making biological areas for their protection, reserved forest and protected forest areas are solely created so that the species get their chances to survive.
Source guardian paper.
Sand sheets and dunes cover approximately 25 percent of the Sahara's surface.