Aresearcher may claim a causal relationship between variables if one variable influences another

false

Explanation:

Based on the information provided within the question it seems that this statement is false. Two variable only have a casual relationship if one of the variables causes the other one to exist, which does not seem to be the case in this situation. Instead this situation can be considered as a correlated relationship as a change in one variable influences the other.

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lunar landing mission. apollo 11 was the first manned mission to land on the moon. the first steps by humans on another planetary body were taken by neil armstrong and buzz aldrin on july 20, 1969. the astronauts also returned to earth the first samples from another planetary body.

explanation:

glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking. erosion and transportation of individual pieces of bedrock, especially large "joint block occur as a result of this glacial erosion. plucking is type of erosion in which rocks become frozen into the bottom and sides of the glacier.as the glacier moves downhill it 'plucks' the rocks frozen into the glacier from the ground.