Answer:
<u><em>O</em></u> areas in which certain characteristics are found throughout the area
Most of the population of the world is concentrated on the continental margins, or more specifically, along the coastlines. This is due to multiple factors, some of which are:
- Climate;
The climate in the coastal regions is usually much more pleasant that the climate deeper into the mainland, so naturally the people preferred to live where it is more pleasant.
- Arable land;
In close proximity to the coastline there's usually nice fertile soil, so it is very suitable for production of food, thus managing to sustain yourself.
- Economy;
The coastal regions, in lots of cases, are well suited for building ports, and that makes them excellent places from where trade can take place, so it strengthens the economy of these places.
Answer:
140 years is average duration of an earthquake.
Explanation:
- The Hayward fault is a geologic fault that is capable of massive destruction and is 119 km long fault western base of hills of San Francisco and is parallel to the San Andreas fault. The occurrence of an earthquake of 6.8 magnitudes in 1868 was biggest earthquake in California history.
- Recently various geologists have taken time interval of the past five large earthquakes and based on the past earthquakes data the interval of 140 years it will take to the formation of a large earthquake.
Answer:An invasive species are organisms that are not native to the ecosystem or either the environment and causes damage and harm to the ecosystem.For example a rabbit comes into a ecosystem and eates all of the plants,then the type of species of rabbit is going to damage and destroy the ecosystem habitat or foodwebs etc.
Explanation:The things is that invasive species damage the ecosystems by eating all of the food that is need for the foodwebs and organisms to maintain and balance the environment around them.Also the reason why invasive species causes a threat to the environment by damage organisms habitats and leading organisms to having a habitat to organinsms that are losing their habitat because of invasive species.
Those geographic helped to protect the Roman Empire.
