The code of Hammurabi was an important document in the evolution of laws
Answer:
There are 195 countries in the world comprises of 193 countries that are member states of the United Nations and 2 countries that are non-member observer states
A strong acid is a number between 0-6 on the pH scale and Bases are between 8-14 on the pH scale the difference is how much hydroxide each one has like coca-cola (acid) and backing soda (base)
Answer:
3.29ft/mi
Explanation:
The gradient of a river is the slope through which a river flows. It measures the vertical drop in elevation of river to the horizontal distance.
Mathematically;
River gradient = 
Elevation = 1229ft
Horizontal distance = 373miles
River gradient = 
= 3.29ft/mi
Let's say that the land has pollution meaning there is trash everywhere and dead plants over there, with those types of pollution it will harm our water supply because sometimes the pollution can affect our water.
Clearing the lands that has pollution can do good for our water and our ecosystem. When we clean the lands, more plants are able to grow, animals build their homes there, etc. That means that the animals and/or plants have a drinking water that is safe to drink and isn't polluted because we cleaned the land and the water.
Keep America clean.
Hope this helped :)
Have a great day
