Answer:
British astronomer William Herschel discovered Uranus accidentally on March 13, 1781, with his telescope while surveying all stars down to those about 10 times dimmer than can be seen by the naked eye....and estimation of its formation is about 4.6 billion years ago...
<span>a)most Canadians are former U.S. citizens</span>
Answer:
la respuesta es que te acaban de apuntar
Explanation:
Plate tectonics is a scientific theory describing the large-scale motion of the plates making up Earth's lithosphere since tectonic processes began on Earth between 3.3 and 3.5 billion years ago. The model builds on the concept of continental drift, an idea developed during the first decades of the 20th century