What does lava become when it cools
a. obsidian
b. basalt
c. granite
d. all lava could become either for of igneous rock

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

When reading a textbook blank. a) it’s safe to assume that the ingot is not biased b) you should watch for fallacies in information and author bias c) you should fact check everything you read d) it is understood that academic sources are not biased

What are the 28 countries in the eu?