Answer:
A river valley civilization is an agricultural nation or civilization situated beside and drawing sustenance from a river. A "civilization" means a society with large permanent settlements featuring urban development, social satisfaction, specialization of labor, centralized organization, and written or other formal means of communication. A river gives the inhabitants a reliable source of water for drinking and agriculture. Additional benefits include fishing, fertile soil due to annual flooding, and ease of transportation. The first great civilizations, such as those in Mesopotamia, Harappa and Ancient Egypt, all grew up in river valleys. Tigris River flourished near Mesopotamia civilization and river nile flourished near civilization of Egypt.
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False.
To the best of my knowledge, the five basic modes of transportation are actually highway, rail, air, water, and pipeline. In more recent times cyberspace may have taken over as one of the top five, but I believe it is not.
Answer:
The adults defend their young using an array of alarm calls and distraction displays. They will also dive-bomb predators if the eggs or nestlings are in danger. Nesting: Nest building is a task of males and females. Nesting American Avocets aggressively attack predators to protect the nest site.
Explanation:
After completing a controlled experiment, a scientist changes the dosage of an antibiotic and repeats the experiment. the change in dosage is the <u>independent variable.</u>
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The independent variable is exactly what it sounds like. This is an independent variable and will not be changed by any other variable you are trying to measure. For example, a person's age could be an independent variable.
Antibiotics are a class of antibacterial substances that act against bacteria. It is the main class of antibacterial agents used to combat bacterial infections, and antibiotic drugs are widely used in the treatment and prevention of such infections.
They are It can kill bacteria or inhibit their growth. A limited number of antibiotics also have antiprotozoal activity Antibiotics are ineffective against viruses such as colds and flu. Drugs that suppress viruses are called antivirals or antivirals, not antibiotics.
learn more about the independent variables here. brainly.com/question/82796
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Answer:
Make every day a Mandela Day THE UP WAY: Message from the Vice-Chancellor. On 18 July 2009, on Nelson Mandela's birthday, the United Nations General Assembly voted in favour of adopting an international day in honour of the life and contribution of Nelson Mandela to South Africa and the world.Jul 18, 2021
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