Explanation

International law, also called public international law or law of nations, the body of legal rules, norms, and standards that apply between sovereign states and other entities that are legally recognized as international actors.

Explanation

Coal workers' pneumoconiosis (CWP), commonly known as "black lung disease," occurs when coal dust is inhaled.

Over time, continued exposure to the coal dust causes scarring in the lungs, impairing your ability to breathe.

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Explanation

Major uses of potassium nitrate are in fertilizers, tree stump removal, rocket propellants and fireworks.

Explanation

Founded February 4, 2004

Headquarters: Menlo Park, California, U.S.

 Facebook was founded by Mark Zuckerberg, along with his fellow roommates

Explanation

It was formed in 2013 as a response to sustained and increasingly visible violence against black communities, with the purpose of creating a united front and establishing a political platform.

Explanation

Create more ethics standards by which corporate professionals must operate.

Explanation

Longitude is related to latitude, the measurement of distance north or south of the Equator. Lines of latitude are called parallels.

Explanation

An endoscope is an inspection instrument composed of image sensor, optical lens, light source and mechanical device, which is used to look deep into the body.

Explanation

Under the effect of Earth's magnetic field, the needle always points toward the north magnetic pole.

Explanation

The Forbidden City is a palace complex at the center of the Imperial City of Beijing.

The Forbidden City was constructed from 1406 to 1420, and was the former Chinese imperial palace and winter residence of the Emperor of China from the Ming dynasty.