Which of the following was the main reason that the leaders of the Tang Dynasty chose to keep the Chinese capital Ch’ang-an as they developed their imperial state?

What causes the cycle of seasons on earth? the tilt of earth’s axis the shape of earth’s orbit the direction of earth’s orbit the distance between earth and the sun

Mengapakah wujudnya perbezaan tanggapan terhadap sumber?

Look at the diagram showing the different wavelengths in sunlight. which statement describes electromagnetic waves with wavelengths greater than 700 nanometers? they take the form of heat. they can cause skin cancer and sunburn. they are some of the shortest waves. they can be seen by human eyes as visible light.