Which of the following statements 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 km.

Select the correct answer using the code given below.

Consider the following statements :

1. Maharashtra State has the maximum share of national highways (length in kilometres).

2. The nature of terrain and the level of economic development is one of the reasons for the maximum share of national highways in Maharashtra.

Which of the statements given above is/are correct? 

Consider the following statements :

1. The Sharavati river creates Jog Falls.

2. The Brahmani river is formed by the confluence of the Kosi and Sankh rivers.

3. The Tamraparni is a river of Tirunelveli district of Tamil Nadu.

How many of the above statements is/are correct?