Answer:
The star is a member of an eclipsing binary star system
Explanation:
- A careful explanation about the measurement reveals that the star maintains a steady and apparent shape of brightness and at most of the time remains brighter.
- With and usual intervals of about the 73 hours and then the star becomes contestant dimmer for about every toe hours and is due to the fact that the star is a member of the eclipsing system.
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Answer:
Option C. Deep ocean canyon
Explanation:
The Mariana Trench is an example of a deep ocean canyon
Answer:
B. change natural marine life habitats.
Explanation:
Aquaculture or aquaculture is the set of activities, techniques and knowledge of breeding aquatic plant and animal species. It is an important economic activity of food production, raw materials for industrial and pharmaceutical use, and living organisms for repopulation or ornamentation. The farming systems are very diverse, from freshwater or seawater, and from cultivation directly in the environment to installations under fully controlled conditions. The most common crops correspond to planktonic organisms (microalgae7 and Artemia), macroalgae, molluscs and crustaceans, the professionals in charge of this work are Fisheries Engineers, Zootechnicians, Aquatic Engineers and Marine Biologists.
Fish farming is the breeding of fish, a term used to group a great diversity of crops that are very different from each other, generally denominated according to the species or the family. The facilities of industrial fish farming are known as fish farms, although this is a term in disuse, due to the diversification that has suffered the crop, in tanks, ponds, floating cages, etc. The most produced species worldwide are carp, salmon, tilapia and catfish.
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