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nordsb [41]
2 years ago
6

Which list of countries arranged least to most in terms of how much of their income they spent on food

Biology
1 answer:
wolverine [178]2 years ago
7 0

Answer:

is number three

Explanation:

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What system receives oxygen and gets rid of carbon dioxide?
Pachacha [2.7K]
This the respiratory system!

The major organ of the respiratory system is the lungs, and in the lungs the air gets divided among smaller and smaller tubes at the end of which the oxygen enters and carbon dioxide leaves the blood!
6 0
3 years ago
what is a mass extinction? what is a mass extinction? an event that causes the extinction of a large fraction of earth's species
sineoko [7]

A mass extinction event occurs when a species disappears far more quickly than it is replaced. This is typically understood as the loss of around 75% of all species over a "short" period of geological time, or fewer than 2.8 million years.

An enormous number of species were wiped out by a harsh, worldwide, swift, and selective event is mass extinction. According to marine fossils, at least 75% of all species are thought to have become extinct. The most recent mass extinction is the Cretaceous-Paleogene extinction event, which is also the only one that can be proven to have been caused by a significant asteroid impact. All non-avian dinosaur species, making up about 76 percent of all species on the earth, perished during mass extinction. The Chicxulub asteroid impact in what is now Mexico, which occurred 66 million years ago, caused an ecosystem collapse that resulted in the extinction of the dinosaurs and >75% of all land and sea species as well as the macroevolution of mammals.

Learn more about mass extinction

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8 0
1 year ago
Drag each label to the correct location. Each label can be used more than once. In a hydropower station, water stored in dams is
Nataly_w [17]

Answer:

Stored water - gravitational energy

Water fall - kinetic energy

Turbine - kinetic energy

Powerlines - electric energy

Explanation:

Dams are used to store or hold water for hydroelectric power plants. This stored water which has gravitational energy is a form of potential energy.

When the water is left to fall and run fast through the turbine, the gravitational energy is transformed into kinetic energy which makes the turbine to spin.

As the turbine spins, kinetic energy that is produced also powers the shaft of the engine in the electric generator, which produces electricuty.

Kinetic energy is transformed to electric energy and transmitted along powerlines.

*See attachment below for labelled energy that is being transformed at several points.

4 0
3 years ago
Read 2 more answers
Which of the following is a characteristic of all rocks?
dolphi86 [110]

The answer to the question is D

4 0
3 years ago
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1. Does a scientific theory ever become a law? Explain
ASHA 777 [7]

Answer:

a theory cannot become a law

Explanation:

the difference between a scientific theory and a scientific law because a theory is an in depth explanation of an observed phenomenon. a law is a statement about an observed phenomenon or an unifying concept (i.e.: newtons law or gravity - no explanation on how it works or what it is just that it exists.)

8 0
2 years ago
Read 2 more answers
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