Ozone is dissolved oxygen so your correct answer is A
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Answer:
<em>Mantle convective current</em>
<em></em>
Explanation:
The North American Plate is a tectonic plate that covers most of North America, Greenland, Cuba, the Bahamas, extreme northeastern Asia, and parts of Iceland and the Azores. It is Earth's second largest tectonic plate, behind the Pacific Plate. It is thought to be moved by the very slow creeping motion of Earth's solid silicate mantle caused by convection currents carrying heat from the interior to the planet's surface.
Impacts of the natural environment on the ancient river valley civilization are given below.
<h3>
What is river valley civilization?</h3>
- A river valley civilization is an agricultural nation or civilization that is located alongside a river and draws its subsistence from it.
- A "civilization" is defined as a society having substantial permanent settlements, social stratification, labor specialization, centralized organization, and written or other formal forms of communication.
- A river provides residents with a dependable source of water for drinking and cultivation.
<h3>Impacts of the natural environment on the ancient river valley civilization:</h3>
- Rivers were appealing to the ancient civilizations because they supplied a consistent source of drinking water and made the land conducive for crop cultivation.
- Furthermore, commodities and people could be easily transported, and the inhabitants of these civilizations could fish and hunt the animals that came to drink water.
- The Indus Valley was fruitful, flooding was regular and predictable, and there was plenty of land in general.
- This resulted in the creation of peaceful people who were able to establish spectacular cities with enormous structures and sewage systems without having to battle for resources.
Therefore, the impacts of the natural environment on the ancient river valley civilization are shown.
Know more about river valley civilization here:
brainly.com/question/14287102
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The first indicator of an approaching thunder storm is THE BUILD UP OF DARK CLOUDS. A thunder storm is a storm with lighting and thunder; it is usually produced by heavy rain, gusty wind and cumulonimbus cloud. Thunder storm is made up of moisture, unstable air and lift.
Water layers, the surface
