Ques: Q: What type of thin lava forms shapes and tubes as it flows? Choices: - spicule - xeric - xerophyte - pahoehoe A:
Ans: pahoehoe

Ques: Q: Some fish will be over-fished to the point that their species ceases to exist, which is also known as what? Choices: - endangered - accumulation - abundance - extinction A:
Ans: extinction

Ques: Q: What do you call a species that has died out in the past? Choices: - endangered - inhabit - remnant - extinct A:
Ans: extinct

Ques: Q: Radioisotopes may vary greatly in their rate of decay, decaying faster if their nuclei are more what? Choices: - mature - immature - stable - unstable A:
Ans:
unstable