Native Americans didn't have an alphabet to write anything down on. A
Answer:
spears, swords, maces, slings, clubs, the wheel, and most important thing writing
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Rolled
Pressed
Molded
Drop
Bar
Answer:
C. Population growth rate decreases
Explanation:
In logistic growth (an S-shaped curve), the population growth rate change as the population nears its carrying capacity by decreasing Population growth rate.
Answer: Noise
Explanation: According to the communication process, noise is defined as the factor due to which the sender to receiver communication gets interfered .The transmission of the message gets disrupted due to noise.
Ralitza is also facing a barrier while in the class and thus not able to focus on the class discussion. The thought of calling her parents is acting as the noise source in the mind of Ralitza.