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? temperature measurements of pahoehoe lava were much more difficult to take than those of aa lava. the temperatures of the pahoehoe lava and the aa lava were very similar. 90% of the pahoehoe lava samples were hotter than the aa lava samples. pahoehoe lava flows much faster than aa lava.

Explanation:

Step1: Analyze each option

• Option1: Difficulty in taking temperature measurements has no relation to actual temperature.
• Option2: Similar temperatures do not support the conclusion that Pahoehoe lava is hotter.
• Option3: 90% of Pahoehoe lava samples being hotter directly supports the conclusion.
• Option4: Flow speed has no relation to temperature.

Answer:

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