Ridge push is a process in which the unlifted ridge is thought to push the oceanic plate towards the subduction zone. Slab pull is a process where by the weight of a subducting plate help to pull the trailing lithosphere into subduction zone. Ridge lush is cause by the potential energy gradient from the high topography. Slab pull is caused by negative buoyancy of the subducting plate.
Explanation:
Indicators are substances that are used to test whether a substance is acidic or basic ot neutral in nature. They change their color when added to a solution containing an acidic or a basic substance. ... Naturally occurring indicators are turmeric, litmus, china rose and red cabbage.
Glacial evidence in african continent and in indian subcontinent , which is very warm region now are the evidence of continental drift .
Scientists Have Found Hidden Evidence of Ancient Ice Streams in The African Desert. Once, about 300 million years ago, when southern Africa was joined at South America's hip, this now arid region was covered in a wide expanse of glaciers.
- here Continental drift is the hypothesis that the Earth's continents have moved over geologic time relative to each other, thus appearing to have "drifted" across the ocean bed.
- In the early part of the 20th century, scientists began to put together evidence that the continents could move around on Earth’s surface.
- The evidence for continental drift included the fit of the continents; the distribution of ancient fossils, rocks, and mountain ranges; and the locations of ancient climatic zones.
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