Answer: Yes the answer is true. How ever, you can add a few points like:
Explanation: If nuclear bombs were blown at the end of mars ploes, it could change its weather.(Elon Musk). It is also observed that there is higher oxygen levels in the northern parts of mars.(information from Uae mars probe). So yes you are right but there are /can be a few similarities between earth and mars.
If the equations have the same slope for example y=4x+2 AND y=4x+3 have the smae slope of 4/1, making them parallel but if the don't have the same slope for example y=2x+3 and y=4x+4 then they are not parallel
'Climatic variations' and 'Human activities' can be regarded as the two main causes of desertification. removal of the natural vegetation cover（by taking too much fuel wood）, agricultural activities in the vulnerable ecosystems of arid and semi-arid areas, which are thus strained beyond their capacity.
I believe your question is supposed to be crimes that security camera and not determine correct? if so in my opinion security cameras would not be able to prove a crime such as theft by deception which is using your words and deceiving someone into thinking their money is going to go somewhere else when really you're putting in your pocket. another example of a crime that security cameras couldn't determine would be slander which is knowing leave making up lies and spreading rumors about somebody that negatively impacts their reputation. basically any crime that you don't have to physically do something but rather you're using your words.
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
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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.
