Answer: D. It can melt to a depth of a few meters in summer, then refreeze in winter.
Explanation:
Permafrost is ground which remains frozen for two or more years. Permafrost consists of soil, rock and sand fused together by ice. Mostly found in areas in high altitude, the Arctic, Antarctica, it is common in periglacial environments where temperatures are below freezing
.
The topmost layer of permafrost can melt in summer and refreeze in winter. This thawing and refreezing produces a ground pattern called columnar joints similar to the one formed when molten lava cools.
<h2>
Answer:</h2>
<u>A) Scatter Diagram</u> can be used to prevent and control a problem.
<h2>
Explanation:</h2>
Scatter diagram is a chart used when the user wants to determine the relationship between cause of a problem and the effects. It also determines one cause and two others. Since it investigates the cause and effects, it is used in problem-solving and controlling problems.
Furthermore, it can be used to analyse problems involving many variations which other charts like histogram, Pareto diagrams cannot analyse. Analyzing the chart checks the relationship between the y-axis and x-axis values by assessing if there is any correlation, whether it is a negative or a positive correlation, and etc.
Answer:
The correct answer i believe is c
Explanation:
Gandhi taught people the correct way to fight injustice. Instead of retaliating with acts of violence, Gandhi implored his followers to only oppose an unfair act and never a person.
Answer:
A. The oil floats on the seawater; water is polar and oil is nonpolar.
Explanation:
Oil is less dense, so it will float on the more dense molecule. :)
Water is polar, oil is nonpolar.
