Answer:
Around the world the most significant restriction on access to potable water is money. While access to raw water sources, clean or otherwise, is important, the purification process itself is expensive. Once water has been rendered potable, it is important that it be delivered without reintroducing contamination.
Answer:
Rocks, water, and air—indeed, most materials—expand and thus become less ... that led to the formation of Earth's core) contributes 20 to 50% of the heat. ... Mantle convection is the main way heat from Earth's interior is transported to ... tectonic plate movement would also stop including earthquakes and volcanic activity.
Explanation:
Slowly, deep underground
The igneous rock gabbro is coarse grained and non-vesicular. Both characteristics show that it is an intrusive igneous rock. Intrusive igneous rocks are formed below Earth's surface and slowly (because they're underground). When rocks are intrusive, they are are non-vesicular (no air pockets) because the air has had the time to escape because of the slow cooling time period. Intrusive rocks are also coarse because crystals had the time to form in the rock during that longer cooling time.
Ps. extrusive igneous rocks form rapidly at Earth's surface and basically have tge opposite characteristics for the opposite reasons (ex: vesicular cause air had little time to escape)
The answer to your question is knowledge. Scientific knowledge is the information gathered by the systematic study of nature.
Rectangle, Square, Rhombus, Parallelogram, and Trapezium
