Magma may cool and crystallize to become solid igneous rock a. magma may cool and crystallize to become solid igneous rock b. more slowly in the presence of circulating groundwaterc. faster if the surface area of the intrusion is low. d.very slowly (centuries to a million years) when it forms a deep pluton.

D.very slowly (centuries to a million years) when it forms a deep pluton.

Explanation:

Magma is a molten rock that forms within the earth crust. It is sometimes called melt. When it reaches the earth surface, it is called lava.

Only D is correct. Magma would cool slowly in a very deep pluton. In such an enviroment, access to circulating ground water is cut off and the temperature would be close to that by which the melt forms.

When magma cools and solidifies, it forms a wide variety of igneous rocks.

In the presence of circulating ground water, magma would cool and crystallize very rapidly. The ground water would provide more fluid phase for the movement of ions within the very thick and viscous melt thereby facilitating crystallization of minerals in the melt. Due to the temperature of the water, it serves as a coolant for the melt. The ground water takes heat away and returns with a more cold water.

Magma cools faster if the surface area of the intrusion is very large. A larger surface area would help more heat to dissipate and leave the body of the melt.

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper

answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures   within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation