In this puzzle assembly experiment, the independent variable is the age of the students, the dependent variable is the time taken to assemble the puzzle, and the constant is the puzzle itself.
In this experiment regarding the assembly of puzzles by students of different ages, the independent variable would be the age of the students, since this is the factor we manipulate or change. The dependent variable would be the time taken to assemble the puzzle, as this is what we are measuring and it depends on the age of the students. The constant in this case would be the puzzle itself since it is the factor that remains the same throughout the experiment for all students.
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cave drawings
handwritten letters
hieroglyphs
Answer:
The correct option is A) smoke signals
Explanation:
In the past, smoke signals were a common method for effective and visual communication over long distances. It uses puffs of smoke to generate a message.
The method of smoke signals simply implied that a fire is created and then covered by a blanket. When the cover was released, smoke would be created which could be seen over long distances.
Different fuels were used for making smokes and changes in the colour and density of smoke created different messages.
Answer:
A. Smoke signals is the answer
Explanation:
I took the lesson and I got it correct
B.In a pool or at a beach lifeguards are often on duty.
C.In a pool, or, at a beach, lifeguards are often on duty.
D.In a pool, or at a beach, lifeguards are often on duty.
Answer:
theme
Explanation:
love and apology are examples of possible themes of a text.
love and apology are both common theme in literature as they are universal experience that many people can relate to.