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Vinil7 [7]
2 years ago
6

What is an ecosystem, and why does it exist in a fragile balance?

Geography
1 answer:
Vladimir79 [104]2 years ago
7 0

Answer: A group of plants and animals that depend on each other for survival. If part of the eco-system changes, it affects the entire system. ... Plants could no longer grow, forcing animals to leave the area.

Explanation:

that is the answer

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In the 1980s the northeast region of Brazil received almost no precipitation for how many years?
mihalych1998 [28]

Answer:

3 years

Explanation:

Even there was  a dry year in 1979, the area received almost the normal amount of rain in 1980.

In 1981 however, the year was quite dry, with rainfalls in drop of almost 20%, that began one of the most important drought in the history of Brazil.

In 1982, rainfalls were down by 30% and it got even worse.

In 1983, the rainfalls were down by about 35%, essentially destroying all the agriculture system that had been severely damaged by the two previous years.

In 1984, rain came back a bit higher than its traditional levels, and in 1985, the area was flooded by rain surpassing the average by 60%!

5 0
2 years ago
The Great Lakes and Corn Belt occupies a significant portion of this subregion located between the Appalachian Mountains to the
IRISSAK [1]

Answer:

The Great Lakes and Corn Belt occupies a significant portion of this subregion located between the Appalachian Mountains to the east and the Rocky Mountains to the west named A. America’ s central lowlands.

7 0
3 years ago
The flat surface is called a playa, and playas are diagnostic of this sort of a valley. What is this type of valley?
timama [110]

Answer:

<u>B. Tectonic</u>

Explanation:

Playa is generally dry and flat. This valley is located in New Mexico, Bootheel region. Valley is noteworthy for the lake Playa i.e a dry lake in the north. This region of desert extends to northwards to the foothills of various mountain ranges, canyons and washes. It's a liner north to south trending towards mountain ranges and flat in south. Playas are formed due to evaporation of water that leaves salt behind it may be underlined with stratified sand, silt and clay. The salt flat valley also called salt marshes. A variety of playas bed occurs in restricted basins that are without outlets. The salts that form these are Chlorine, sulfate, and carbonate. Hence this landform is a product of tectonic forces and factors that influence the growth and development of this valley.

8 0
2 years ago
The warm climate of Central Africa is primarily due to
bogdanovich [222]
Correct answer A. Its latitude, because <span> Africa is primary due proximity to equator.</span>
8 0
3 years ago
Modern democracies function as republics in which elected officials make decisions for the majority of the people. Please select
11Alexandr11 [23.1K]

The answer is True

An example of this is the United States in which majority vote elects officials to make the majority of decisions for the people in the country.

5 0
3 years ago
Read 2 more answers
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