Question

_____ particles cool at the top to form crust..

a) heavier
b) lighter
c) thinner
d) closer​

Answer 1

Lighter particles

Explanation:

Lighter particles is the answer due to the fact that lighter particles have less density. As we know mass is directly proportional to the density of the particles.

Low mass causes them to move upward while heavier particles are settling down. These particles move to the top and form crust.

These particles are easily cooled and form thin layer at the top.

Answer 2

Thinner particles cool at the top to form crust.

Explanation:

• The earth crust is a thin shell-type structure that lies on the surface of the earth and accounts for less than one percent of the earth's volume.

• It consists of a division of layers that form the upper parts of the mantle and is broken into tectonic plates and this allows the heat to escape from the interior.  

• The crust lies on the mantle and it has thickness varies at places as the ocean is made of basalt and gabbro and continental are made of felsic rocks. The temperature of this crust increase with depth and range from 200 degrees.

• From mud to clay to diamonds and to coal, and are rich in igneous as granite and basalt. Most of the continental crust is made of SIAL that is silicon and aluminum sheets.

Learn more about the particles cool at the top to form crust.

• brainly.in/question/17221064 answered by Mahakincsem.