Lava that cools so quickly that ions do not have time to arrange themselves into crystals will form igneous rocks with a
a. porphyritic texture.
b. coarse-grained texture.
c. glassy texture.
d. fine-grained texture.

Option (D)

Explanation: Magmas when comes out of the surface, then it is known as lava and this lava immediately solidifies, and forms igneous rocks. The crystal's size and texture depends upon the rate of cooling of magma.

Thus the correct answer is option (D).

answer: option (4) is the correct answer.

explanation:

areas which are at low altitudes and near the equator tend to receive direct sunlight from the sun. hence, heat energy or radiations from the sun make these areas warmer and they have warmest water.

whereas areas which are at high altitudes and away from the equator do no receive direct sunlight. hence, no direct contact from the sun makes these regions colder and thus, they have colder water.

thus, we can conclude that the statement areas at low latitudes near the equator have the warmest water because they receive the most direct sunlight best explains the relationship between an area's geography and the temperature of its surface water.

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.