Railways PYQCBT 2 2017

RRB NTPC · Question 67

In December 2015, NASA’s Curiosity Mars rover found the presence of ________. Which will help scientists learn about the ancient wet environment.

  1. Magnesium

  2. Cadmium

  3. Silica

  4. Calcium

Show answer & explanation

Answer: (C) Silica

Explanation

In December 2015 NASA reported that Curiosity found high concentrations of silica in rocks near Marias Pass on Mars, pointing to an ancient wet environment.