B.Mt. Demand is the highest elevation in middle East and North Africa
Areas of volcanic activity that are not located at plate boundaries and do not change position are called <u>hotspots</u>.
Hotspots are regions of volcanic activity that are not near plate boundaries and do not move. In forming the surface of the Earth, volcanic activity has been largely responsible. Volcanism, particularly in the western states, is responsible for much of the land's natural beauty, mineral wealth, and soil fertility.
In volcanic activity the volcanic rocks blanketed nearly all of the western states of Washington, Oregon, California, Nevada, Arizona, Utah, Idaho, and major areas of Montana, Wyoming, Colorado, New Mexico, and Texas at some point in the last 70 million years. Even older volcanic rocks, which have been significantly deformed and metamorphosed, can be found in practically every state.
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The fourth event took place in the "Grand Canyon's" geologic history was "Dox Sandstone is deposited in a beach environment".
Option: B
<u>Explanation</u>:
The geological history of Grand Canyon located in Arizona, USA and involve full-sequenced rock studies on Earth. This arrangement is studied in the form of “ Unkar Group”, involve a layer of sedimentary rock named as “Stratum” from Proterozoic age which is branched into five geologic formations. This process is arranged in the following increasing order: Bass formation > Hakatai Shale > Shinumo Quartzite > Dox Formation > Cardenas Basalt. Here Dox formation is 4th portion which took place in Grand Canyon’s origination, which is a sandstone from Mesoproterozoic rock.
Answer:
Yes, there are certain planet that are not detected even if they are large.
Explanation:
- The Doppler method is the radial-velocity method, and also an indirect method finding the extra solar planets and the brown dwarfs. While the transit method is a phenomenon only the celestial bodies are directly between a large body and an observer body.
- However, the transit method of the transiting planet is low as it depends on the alignment of the three objects that are in a near perfect straight line patterns. And that of the Doppler method that it can only measure movements along that line of sight, and this depends on the estimates of inclination of the planet's orbit to determine its mass.
- <u>Thus of a planet is found by both these methods we can find its density, and an indication of its composition.</u>