Naturalists of Steno’s day were becoming convinced that matter was composed of different combinations of tiny “corpuscles”—what today we would call molecules. Steno argued that the corpuscles in the teeth were replaced bit by bit, by corpuscles of minerals. In this gradual process, the teeth didn’t lose their overall shape as they turned from tissue to stone.
They are brought from colder regions e.g. the North and South poles where ice caps are melting to give cold water. Currents are due to the effect of wind on the water.
Answer:
Natural resources are materials from the Earth that are used to support life and meet people's needs.
Explanation:
Ex : Oil, metals, stone, air, sunlight, soil water, Animals, birds, fish and plants etc...
use : used to make food, fuel and raw materials for the production of goods.
Natural resources are also categorized based on distribution:
* Ubiquitous resources are found everywhere (air, light, and water).
* Localized resources are found only in certain parts of the world (metal ores and geothermal power).
go for it!!!
i still remember it from my Middle school!
The quartz is more resistant to abrasion and chemically more resistant than the feldspar. The result is that the quartz remains in the stream but the feldspar breaks down to clay or is dissolved.
(this is from coursehero.com)
