NISAR - GS questions based on daily current affairs

1)   What is the purpose of NISAR?

a. Measure the changes of earth's ocean and ocean currents
b. Measure the changes on earth’s land surface, ice surface, glaciers, earthquakes and volcanoes
c. Study the consequences of climate change on Earth's atmosphere
d. Study changes in pattern of agricultural land
Answer  Explanation 

ANSWER: Measure the changes on earth’s land surface, ice surface, glaciers, earthquakes and volcanoes

Explanation:
- NISAR : Nasa-Isro Synthetic Aperture Radar (NISAR) mission.
- It is a joint project between NASA and ISRO to co-develop and launch a dual frequency synthetic aperture radar satellite.
- The satellite will be the first radar imaging satellite to use dual frequency (L band & S band) and it is planned to be used for remote sensing to observe and understand natural processes of the Earth.