Answer:
Beijing
Explanation:
I g-o-o-g-l-e-d it so this should be right
The two minerals that are found in cement are : Silica and calcite.
<u>Explanation:</u>
Different minerals form the composition of cement but the minerals that are most commonly found in cement are calcite which is contained in the limestone.
The other mineral that is used in the production of cement is silica in the form of raw rock type used to make cement which is found in clay. So they form an important part of formation of cement.
Answer: Polaris
Options:
the moon
the sun
Polaris
Sirius, the dog star
Explanation:
Polaris, also known as the North Star is a star in the Ursa Minor. It is the brightest in this Constellation and when observed over a long period of time, it seems to stays in the same position.
The angle at which Polaris is observed will be similar to the latitude of the observer’s location. For instance if it is seen to be 35 degrees above the horizon, the observer’s location is at a latitude of roughly 35 degrees.
This is due to the closeness of the Polaris to the North Celestial Pole, the axis of the stars in the Northern Sky. As the earth rotates, this creates the appearance that Polaris is stationary.
