The limestone caves at Carlsbad Cavern were formed by hydrogen-sulfide-rich (H2S) waters. This water moved through fractures and faults in the limestone and mixed with rainwater along the way. The mixture gave rise to a substance known as sulfuric acid (H2SO4). Sulfuric acid is able to dissolve limestone, eventually creating Carlsbad Cavern. The process of cave formation ended roughly four million years ago.

5 0

3 years ago

The inner planets mercury, Venus, earth, and mars were formed by

VikaD [51]

<u>ANSWER:</u>

About some billion years ago, dust and gas particles began orbiting around the sun.

These particles then began to stick together and formed large particles. Slowly, these particles began attracting more mass with their gravity.

After millions of years, these particles became planetesimals. They started revolving around the sun in their own orbit and formed spherical shapes.

This continued for another millions of years and thus planets were formed.

<u>EXPLANATION:</u>

The inner planets are the four planets that are closest to the sun. The inner and outer planets are separated by asteroid belts.

The "inner planets are terrestrial" and rocky whereas the "outer planets" are mostly gas.

7 0

3 years ago

Describe how the Mongol empire was governed.

In-s [12.5K]

Answer:

Genghis forged the empire by uniting the nomadic tribes of the Asian steppe and creating a devastatingly effective army based on fast, light, and highly coordinated cavalry. Expert horsemen and archers, the Mongols proved unstoppable, defeating armies in Iran, Russia, Eastern Europe, China, and many other places.

Explanation:

5 0

3 years ago

Southeast Asia constitutions guarantee a nation's people are free and able to participate in government. True or False?​

Southeast Asia constitutions guarantee a nation's people are free and able to participate in government. True or False?