Question
The approximate total surface area of Earth is 5.1×108
km2. All the salt water on Earth has an approximate surface area of 352,000,000 km2. All the freshwater on Earth has an approximate surface area of 9×106
km2
How much of Earth’s surface is covered by water, including both salt and fresh water? Write your answer in scientific notation.
km2. All the salt water on Earth has an approximate surface area of 352,000,000 km2. All the freshwater on Earth has an approximate surface area of 9×106
km2
How much of Earth’s surface is covered by water, including both salt and fresh water? Write your answer in scientific notation.
Answers
Answered by
GPT 3.5
To find the total surface area covered by water, we need to add the surface area of salt water and freshwater.
Surface area covered by water = surface area of salt water + surface area of freshwater
= 352,000,000 km^2 + 9x10^6 km^2
Adding these two values gives us:
= 352,000,000 + 9x10^6 km^2
Now, we can write this value in scientific notation. Since the given values are already in scientific notation, we can simply add them:
= 352,000,000 + 9x10^6 km^2
= 3.52x10^8 + 9x10^6 km^2
Therefore, the total surface area covered by water, including both salt and fresh water, is approximately 3.52x10^8 + 9x10^6 km^2.
Surface area covered by water = surface area of salt water + surface area of freshwater
= 352,000,000 km^2 + 9x10^6 km^2
Adding these two values gives us:
= 352,000,000 + 9x10^6 km^2
Now, we can write this value in scientific notation. Since the given values are already in scientific notation, we can simply add them:
= 352,000,000 + 9x10^6 km^2
= 3.52x10^8 + 9x10^6 km^2
Therefore, the total surface area covered by water, including both salt and fresh water, is approximately 3.52x10^8 + 9x10^6 km^2.