Answer:
4.351968e+17 seconds
Explanation:
So I googled age of the universe and it says 13.8 billion years.
you'll have to do some conversions:
in one year, there are 365 days. in one day, there are 24 hours. in one hour, there are 3600 seconds.

so you have to add in the current age of the universe to that equation:

arranged so that the proper "units" will read as "x seconds" at the end of the equation.
then you do the math to find x:
13.8 billion x 365 x 24 x 3600 = 4.351968e+17 seconds.
which would be 435,196,800,000,000,000 seconds
Hope this helps :)
Answer:
A T-chart is used comparing two sides of a topic for example pros and cons or cause and effect. A star diagram is used for organizing the characteristics of a single topic, a central space is used for displaying the topic, with each point showing or listing an attribute about the topic.
The sun or solar energy is the most reliable source of energy on Earth.
Answer:
The current would be 0.12A
Explanation:
Well, the formula for electric current is

where i is current, q is charge and t is time. Then we have to calculate the charge. If we know that the charge of a proton is
, then we calculate the charge of 1500 protons as it follows:

So the current for each square meter of Earth's surface is

Finally, knowing the surface of the Earth is 510065284702000
, we can calculate the total current 

Umm, not normal or healthy but common
could be depression