What is sustainable development? what is environmental conservation?

Give short answer​

The long term development which is done by the preservation ,utilization and management of resources which is used by present generation and with preservation for future generation is sustainable development.

the conservation of habitat of living beings and plants is called environment conservation.

glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking. erosion and transportation of individual pieces of bedrock, especially large "joint block occur as a result of this glacial erosion. plucking is type of erosion in which rocks become frozen into the bottom and sides of the glacier.as the glacier moves downhill it 'plucks' the rocks frozen into the glacier from the ground.