What is igneous rock made of

2 answers:

6 0

Igneous rock forms from magma, which is molten rock, cools on the surface of the Earth.
So they are made of magma which has cooled.

Natasha_Volkova [10]3 years ago

5 0

A good example of intrusive igneous rock is granite . Extrusive igneous rocks form when the magma or molten rock pours out onto the earth's surface or erupts at the earth's surface from a volcano . Extrusive rocks are also called volcanic rocks.Basalt , formed from hardened lava , is the most common extrusive rock

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vaieri [72.5K]

Answer:

The correct option is e.

Explanation:

p-value is the probability value for a given statistical model, the probability that, when the null hypothesis is true.

For two two samples the formula of test statistics is

$t=\frac{(\overline{x}_1-\overline{x}_2)-(\mu_1-\mu_2)}{\sqrt{\frac{s_1^2}{n_1}+\frac{s_2^2}{n_2}}}$