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?
○ 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.
○ the temperatures of the pahoehoe lava and the aa lava were very similar.

Explanation:

To support the conclusion that Pahoehoe lava is hotter than Aa lava, we need evidence related to their temperatures.

• The first option talks about flow speed, not temperature.
• The second option is about measurement difficulty, not temperature comparison.
• The third option states that 90% of Pahoehoe samples were hotter than Aa samples, which directly supports the temperature comparison.
• The fourth option says temperatures were similar, which contradicts the conclusion.

Answer:

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