Answer:
D) 13.62 kg/L
Explanation:
This problem can be solved by a simple rule of three.
The problem states that Mercury has a dansy of 30 lbs/L, and asks what is the density in kg/L. We have to convert from lbs to kg.
Each lb has 0.454 kg? How many kg are there in 30 lbs?
So:
1 lb - 0.454kg
30 lb - x kg
This means that mercury's density in kg/L is 13.62, letter D. Letter A is also 13.62, however it is not in the unit asked.
The correct answer is B: rugged landscape of mountainous land. The terraces are made so that erosion and surface runoff is reduced and the water that would be lost to surface runoff is properly utilized by the plants.
From Top to bottom: C, B, D, A. That's the correct matchups (:
<h2>This is not beautiful</h2><h3>The picture in attachment is beautiful...</h3>