Answer:
Borehole instrument and seismic waves instruments.
Explanation:
Answer:
<h3>The invention of gunpowder.</h3>
Explanation:
- The post classical era often called as post ancient period is the period between 6th century AD to 15th century AD. This period is also known as the medieval period and is known for the various discoveries and inventions made during this age.
- It was during the post classical era China invented the four greatest inventions of all time. They were the gunpowder, printing press, paper and compass.
- The invention of gunpowder changed the whole scenario of warfare. It had a very powerful impact on the ways of battles and warfare all over the world.
A triangular pyramid and a square prism can the bfigure be broken into. Because the bottom portion's base dimensions aren't the same, it can't be a cube. As a result, it's a square prism and a triangular pyramid.
<h3>What is a triangular pyramid?</h3>
A pyramid with a triangle base is termed as a triangular pyramid. The tetrahedron is a triangular pyramid with four faces that are all congruent equilateral triangles. It is like the A Rubik's triangle.
A bor construction with a polygon as its ground and three or more triangles as sides that meet at the top.
Thus, option C is correct.
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Answer: The correct answer is: II. Secrete Ballots
III. Split ticket voting
Explanation: In 1896 progressives achieved that in almost all states a secret ballot was implemented. This type of secret voting was announced by the state, all candidates and all parties were listed. Through this system people could divide their ticket when voting and they were no longer required to vote for the party line.
