The correct answer is - Amazon Basin.
The northern half of Brazil is dominated by the Amazon Basin. This basin is formed by one of the longest rivers in the world, the Amazon River, which is also the river that has the highest amount of water in it. It lies in the middle of the Amazon Basin, cutting it in half, and in certain parts of the year flooding parts of it. This basin is covered by tropical rainforest, in fact the largest tropical rainforest in the world, the Amazon rainforest. It is an area dominated by lowlands and small hills, cut by thousands of smaller and larger rivers, all of which are tributaries to the largest one, the Amazon River. This basin is also the place on the planet that has the highest biodiversity in the world of plants or animals.
Like most Earth materials, rocks are created and destroyed in cycles. The rock cycle is a model that describes the formation, breakdown, and reformation of a rock as a result of sedimentary, igneous, and metamorphic processes. All rocks are made up of minerals.
<span>In terms of matter and resources, the Earth is essentially a closed system, because matter and resources are fixed.
</span>In terms of energy, the Earth is an open system, because there is a balanced transfer of energy. (The energy<span> radiates into the </span>Earth's system<span>, from the Sun and</span><span> then it is radiated back into space from the </span>Earth. The<span> flows of energy are regulated by the </span>Earth's<span> atmosphere and ozone layer.)</span>
There's two main reasons why geologists think that the Earth's core is made out of iron:
1. The seismic waves that travel through the core are moving at a velocity that depends on the properties of the material the waves travel through, and the best fit in this case is the Iron (Fe).
2. The iron is the most abundant metal in the universe.
