Answer:
The celestial sphere is a fictional sphere to which all celestial objects can be projected.
Explanation:
At any time an observer can see only the half of celestial sphere because the other half lies under the horizon. The celestial sphere is the medium used for sphere astronomy. The celestial sphere does not have a defined magnitude. It can be infinite or at least really big.
Answer:
Geologically, rivers, mountains, oceans, seas, biomes.
Cliffs are very heavy rocks and when there is too much weight it can cause cracks that weakens the structural integrity which can cause the cliff to either collapse or give way, falling on the ground below which can kill people crush cars or block roads. Hope this helps :)
D timber.
the interior of brazil is a heavily deforested rain forest which is the biggest rain forest in the world. the timber laws are also more loose allowing more people to use the trees for commercial use.
