Answer: b. Clear-cutting
Explanation: Clear cutting is a cheap and effective way of harvesting trees or timbers, this methods helps the forest operators to get the best out of a forest at a very reduced cost.
Clear-cutting is bad because removing the whole tree from an area destroys outrightly the natural habitat of most widelife, and it will also lead to the destruction of the eco-system that relies on the forest.
Water planishes the land
water keeps civilization alive
life depends on water
Weathering is related to the breaking down and loosening of rock or soil into smaller pieces, but the weathered pieces remain in place. Erosion is related to the movement of weathered (and sometimes non-weathered) pieces away from the source.
Answer:
3. all bodies in the solar system formed from an enormous gas cloud.
Explanation:
Nebular hypothesis -
According to this theory , the planets are made up of cloud material associated with the youthful sun , that is rotating in slow motion .
Later it was given that , all the celestial body present in the universe are composed of huge gas cloud .
Hence, from the given options , the correct statement for the nebular hypothesis is 3.
