Joseph Stalin was the most important person of the formation of the Soviet Union
Answer:
They have reduced the river's force to almost nothing by the time it finally empties into the sea.
Explanation:
The Colorado River is one of the biggest rivers in North America. It runs mostly through the United States and little through Mexico where it ends its flow and empties into the sea. This river has been the subject of heavy exploitation by humans, and for that purpose, numerous dams have been built on it.
The number of dams is so high and the water is used at such a high rate that the river barely has any water as it empties into the sea. As this river runs mostly through arid and semi-arid areas that are also used for agriculture, its waters are heavily used for irrigation, leaving less and less water in the river as it gets closer to its endpoint. The dams are helping a lot in the economies of the states through which the Colorado River runs but the effect on the ecosystem of the river has been devastating.
The correct answer is A. An oak tree
Explanation:
The term "primary producer" is used to describe organisms that can produce their own energy without feeding on others, this includes plants and algae that produce food and energy through photosynthesis using light and other inorganic compounds. Additionally, the primary producers can be identified because in ecosystems they are always on the first level and they are eaten by others.
According to this, the one that is a primary producer is an oak tree because this is a type of plant and therefore can produce its food through photosynthesis different to others that need to feed on other organisms to obtain energy.
Answer:
Crust: the outermost layer of Earth
Mantle: located between the core and the crust; region of hot, slow-flowing solid rock
Convection: the movement of matter that results from differences in density caused by variations in temperature
Core: extends from below the mantle to the center of the Earth
Lithosphere: the outermost, rigid layer of Earth
Asthenosphere: the layer of weak or soft mantle that is made of rock that flows slowly; tectonic plates move on top of this layer
Mesosphere: the strong, lower part of the mantle
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