Answer:
a. red-brown
Explanation:
Specular Hematite is a mineral which is found in rocks and soils. The crystal of specular hematite is greyish black in color but it can form the streak of reddish color which is due to the presence of iron oxide. It has metallic luster which gives a look like silver and has shiny flakes.
Answer:
Seismic events in the Eastern Caribbean are principally associated with a subduction zone at the junction of the Caribbean Plate and the North American Plate. The North American Plate dips from east to west beneath the Caribbean Plate along a north-south line just east of the main island arc.
Explanation:
Answer:
FALSE
Explanation:
The freshwater refers to all the naturally occurring water on the earth's surface such as rivers, streams, lakes, and glaciers. It does not include the sea and ocean water bodies.
This freshwater plays an important role in supporting the various life forms on earth as well as the ecosystem. Only about 3% of the total water present on the earth is freshwater.
This freshwater is affected by human activities very significantly. The rivers, streams, and lakes are constantly being polluted due to the following reasons such as the toxic chemicals released from the factories and industries mixes with the river, addition of fecal waste and solid waste materials to the water, thereby making the water unsuitable for drinking and other purposes.
Thus, the freshwater present in the world is constantly being degraded and decreasing.
Hence, the above-given statement is False.
The ocean, atmosphere, cryosphere, and biosphere interact with the geosphere via the earth's crust.
Atmospheres are layers of gas that surround planets and other celestial bodies. Earth's atmosphere is composed of approximately 78% nitrogen, 21% oxygen, and 1% other gases. 1: the total mass of air surrounding the earth. 2: Gas surrounding celestial bodies (planets, etc.) The atmosphere of Mars is mainly composed of carbon dioxide. 3: air of a place. 4: Ambient influence or set of conditions An atmosphere of excitement.
The atmosphere is defined as the region of air and gas surrounding an object in space, such as a star or planet, or the air around any location. An example of the atmosphere is the ozone and other layers that make up the Earth's sky as we see it. An example of an atmosphere is the air and gases contained in a greenhouse.
Learn more about the atmosphere here
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