B. Laurasia in the north and Gondwana in the south.
<u>Answer:</u>
<em>The mineral property of cleavage depends on the alignment of</em><u><em> 2. Atoms</em></u>
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<u>Explanation:</u>
- Minerals which exhibit this property form crystals upon breaking.
- The property of cleavage is decided by the placement of atoms in the mineral crystal.
- The alignment of atoms is a determining factor of the direction in which the crystal will break when pressure is applied.
- Atoms placed at short distances to each other form strong bonds. Weak bonds are formed between the atoms which are at longer distances.
- When pressure is applied, the mineral crystal will break along the region having weaker bonds.
I just did this in my test and the answer is C. Limited access to public services like health and education
Reefs are low ridges, typically made of coral, that rise to or near the ocean's surface.
Reefs are low ridges that rise to or lie near the ocean’s surface. Reefs usually lie at a length of 80 meters or less under low water. They are usually composed of coral, rocks or sands. Some reefs are formed from abiotic processes such as wave erosion, sand deposition while some reefs (such as coral reefs) are formed from biotic processes. An example of a reef is the Great Barrier Reef in Australia. This reef is the largest and the most popular reef on earth.