Answer:
Conceptual design is the first stage that involves defining a concept.
Explanation:
In the conceptual design phase it is important to understand the needs, doing research and find out how to meet them defining models and plans. In this stage, you have to define the steps you will need to take to develop the design and identify the challenges you may face in order to be prepare.
<u>Question 9:</u>
The correct answer would be either (b) or (d).
<u>Question 10:</u>
<u></u>
The correct answer would be (b).
Hope it helps. :)
A) Limestone is the correct answer