BlogHide Resteemsdahyalal82 (25)in save • 6 years agosteemCreated with Sketch.Save earthIn June 1972, representatives of the whole world gathered at Stockholm on June to be committed to conserve the environment. Issuance of notification for the environment. As part of this, the United…dahyalal82 (25)in mangal • 6 years agosteemCreated with Sketch.House keeping staff for mars rover goingNASA's 'Opportunity Rover' is facing the biggest problem of its lifetime. The black dust on the Mars planet has hit black dust. Dust erosion means that the height of the highest volcano on the…