Answer:
D. Ferromagnesian minerals
Explanation:
An igneous rock (formed from the solidification of molten rock material) with a very low silica content (less than 45%), low potassium content and rich in minerals, more than 90% magnesium (MgO) and iron (FeO), is known as ultramafic igneous rock (also known as ultrabasic rocks), they are dark-colored, found in orogenic (mountain-forming) belts and they are used for scientists to understand geological processes in the Earth's history. Examples include peridotite, kimberlite, lamprophyre, lamproite, dunite, and komatiite.
<em>Considering this information we can conclude that D. Ferromagnesian minerals are the correct answer. </em>
I hope you find this information useful and interesting! Good luck!
The correct answers are:
a. bridges suspended almost 100 feet off the ground; to be able to walk among the top canopy of a rainforest means that bridges suspended of around 100 feet are required. This is due the fact that in the fierce competition of the trees in the rainforest for getting sunlight, some species manage to reach very big heights to overshadow their competition.
a. True; reclamation can restore an environment affected by mining and mostly return it to a state to be able to sustain its ecosystem. Even though it is not the most perfect method and there's still consequences to the ecosystem, still it is the best so far that manages to return the environment close to its initial shape. Unfortunately it is not a widely used method and the mining companies should definitely be forced to practice it much more.
For the past decade, Islamist militant groups have been gaining ground in Africa. In 2015, Nigeria’s Boko Haram became the world’s deadliest terror group. Since then, five African militaries, backed by the US and EU, have tried and failed to defeat them.
