Answer:
1) They gave us the concept of zero (0)
2) The gave of the concept of the decimal system
3) They made seminal contributions to the study of trigonometry, algebra, arithmetic and negative numbers among other areas
I tried, hope this helps :)
Answer:
C) William's positive self-concept
Explanation:
The correct answer is concrete operational stage. This stage
is considered to be the third stage among the piaget’s theory of cognitive
development by which this period spans the time in terms of the middle
childhood and is being characterized through the development of the logical
thought.
Pretty sure it was Darwin... While most scholars didn't travel long distances at that time, Darwin did. he experienced in remote areas the diversity of life and evolution of a species.
C as crops will be affected and so is their livelihood.
