Answer:
Valleys, canyons, oases, plains, and sand dunes
Explanation:
I looked up the answer, also I don't know if this is what you're asking but here you go
Why might a post classical civilization want to conquer Egypt and the Nile River Valley? It's fertile land provided the foundation for the first human civilizations and its access to the Persian Gulf and location between Europe, Asia, and Africa made it a center of trade.
Answer:
Ridges, Mountains, and trenches
Explanation:
Divergent plates travel away from each other, this causes open spaces. Convergent plate drive into each other creating mountains and ridges, an example is the Indian plate driving into the Asian plate creating the Himalayas.
Changes in the moon's visibility.
Answer:
107.3g
Explanation:Density = Mass/Volume
There are two methods either by taking the above formula and inserting the values or by using Mass = Denstiy*Volume
Here I have showed you both the ways:
1st
As Desnity is 21.46g/cm^3
Volume = 5cm^3
Let m be mass
21.46g/cm^3=m/5cm^3
Cross multiplication takes place here
21.46*5=m
107.3 =m
Therefore, mass of platinum = 107.3g
2nd
Mass = Denstiy*Volume
Density = 21.46g/cm^3
Volume = 5cm^3
m=21.46g/cm^3* 5g/cm^3
m= 107.3g
