Answer:
In geology, the rivers' main role is erosion and deposition, while for humanity, they have been crucial for the survival and development.
Explanation:
The rivers are water bodies (almost always of freshwater) and they have an influence on many things, be it of living or non-living nature. Physically, the big influence of the rivers can be seen in geology. The socio-economic and existential influence can easily be seen with humans.
In geology, the rivers have a big influence because of their big erosive power and their carrying capacity. Basically, the rivers destroy the rock strata, but also carry the material and pile it up at another place. At humanity, the rivers have been crucial for the survival of the species, but they have also enabled humans to produce their own food, develop civilization, and prosper.
Answer:
:)
Explanation:
Working slowly over many years, groundwater travels along small cracks. The water dissolves and carries away the solid rock. This gradually enlarges the cracks.
The equator and the International Date Line cross in the area of Pacific Ocean. There is a tradition to celebrate the first sailor's crossing of the line.
Answer:
B. All of these are drivers
Explanation:
The populations of lot of amphibians, with rare exceptions, are constantly on the decline around the world. The main reason behind this is the human activity, as it has caused lot of changes, pollution, and dangers for the amphibian populations, which has led lot of amphibians to be on the verge of extinction.
The pollution, especially of the waters, has been a major factor for the decline of the amphibian population. Lot of very toxic chemicals have made the water unsuitable for living and poisonous, which systematically killed off the amphibian populations.
The habitat loss, as with any other group of animals, has left the amphibians without places to live. They have been left without their shelters, food sources, mating grounds, and they have started to die out.
The invasive species, especially the predatory ones, have also had big negative impact. The amphibians didn't had any defense mechanism against the introduced predators, so they were easy prey and their numbers rapidly went down.
