Deep ocean currents are driven by density and temperature gradients. Thermohaline circulation is also known as the ocean's conveyor belt (which refers to deep ocean density driven ocean basin currents). These currents, called submarine rivers, flow under the surface of the ocean and are hidden from immediate detection.
The light-colored material is in areas of the Moon called the highlands, which represent the earliest crust on the Moon. Impact cratering shattered this crust and often deformed it, pushing some of it into mountain-high impact crater rims or ejecting it across the surface of the Moon.
In Europe it is called the maquis, Australia has the mallee, Chile the matorral, and South Africa calls it fynbos. It is also called the Mediterranean Forest, Woodland, and Scrub biome. The chaparral biome has many different types of terrain.Some examples are flat plains, rocky hills and mountain slopes. WEATHER: The chaparral is characterized as being very hot and dry.n Europe it is called the maquis, Australia has the mallee, Chile the matorral, and South Africa calls it fynbos. It is also called the Mediterranean Forest, Woodland, and Scrub biome. The chaparral biome has many different types of terrain.