Question

scientists studying the different types of lava concluded that pahoehoe lava is hotter than aa lava. which piece of evidence best supports their conclusion? the temperatures of the pahoehoe lava and the aa lava were very similar. pahoehoe lava flows much faster than aa lava. temperature measurements of pahoehoe lava were much more difficult to take than those of aa lava. 90% of the pahoehoe lava samples were hotter than the aa lava samples.

Explanation:

• The first option says temperatures are similar, which doesn't support Pahoehoe being hotter.
• Lava flow speed (second option) doesn't directly relate to temperature.
• Difficulty in taking measurements (third option) doesn't prove temperature difference.
• The last option provides statistical evidence (90% of samples) that Pahoehoe is hotter, directly supporting the conclusion.

Answer:

90% of the Pahoehoe lava samples were hotter than the Aa lava samples.