Answer:
Diamond-
Physical identification characters:
Color- White or Colorless
Lusture - admantine
Streak - Colorkess
Habit - Hour glass structure
Hardness - 10
Cleavage- octaheadral
Composition- pure carbon
Specific gravity-3.5
Dolomite (CaMg(CO3)2
Color - Colorless or white
Hardness is between 3-4
Reacts with any acid
Gneiss
Light and dark strip or banding present alternatively
biotite , pyroxene have Mafic mineral shows dark banding
Quartz, Feldspar have Felsic mineral for light banding
High grade metmorphic rock which is formed due to regional metamorphism of lower grade rock
Chalk(CaCO3)
Color-White
Very fragile
Hardness-1
With acid gives effervescence.
Some of the factors are:
<span>-Moderate climate.
-central geography,
-ease of transportation,
-highways,
-railroads,
-location near a large body of water
</span>Large cities tend to develop far from cities that had either too hot or too cold temperature. It also must be easily accessible by other regions and provide the people with necessary resources that help them sustain their living (such as water, food crops, woods, etc)
They have an equal number of protons (positive charge) and electrons (negative charge)
Both plant and animal cells can reproduce! Hope this helped! I'm about to submit a question if anyone wants to help me!