Consider the following statements with reference to Feldspar mineral: 1. Half of the earth's crust is composed of feldspar 2. It has light cream to salmon pink colour 3. Magnesium is a common element in all types of feldspar

Arrange the following major elements present in the Earth's crust, in ascending order (in weight percentage): 1. Aluminium 2. Calcium 3. Silicon 4. Oxygen

Consider the following statements and select the correct answer from the codes given below: 1. The northern end of the earth’s axis is called North Pole. 2. 45° latitude is half of the length of the…

Which of the following statement(s) is/are correct? 1. The Earth’s crust is brittle in nature. 2. The mean thickness of the oceanic crust is 15 km, whereas that of the continental crust is around 30…

Consider the following statements : 1. The axis of the earth's magnetic field is inclined at 23 and a half degree to the geographic axis of the earth. 2. The earth's magnetic pole in the northern hem…

Consider the following statements : 1. The Earth's magnetic field has reversed every few hundred thousand years. 2. When the Earth was created more than 4000 million years ago, there was 54% oxygen a…