Answer:
It could take several thousands of years.
Explanation:
To be specific, the exact number of stars in the galaxy is unknown, it's estimated to have around 100 to 400 billion stars.
But for the sake of this test, let's take as valid a recent study of the European space agency, that believes that we have 100 billion stars orbiting our galaxy.
If you could count 1 every second it would mean you'll need at least 100 billion seconds to do it. How many days is that?
We have:
100 billion seconds = 1.666 billion minutes
1.666 billion minutes = 27.777 million hours
27.777 million hours = 1,157 million days = 3,170 years.
You would need at least, 3170 years of spare time, considering that you will do no other thing than counting stars for the next 3 millennia.
If you could count stars at a rate of one per second, it would take roughly 3,178 years to count all the stars in the Milky Way Galaxy. This calculation is based on a lower end estimate of 100 billion stars in our galaxy.
Explanation:If we consider a rough estimation of the number of stars in the Milky Way, it's often proposed to be about 100 billion. However, some estimations go up to 400 billion. Let's stick with the lower estimate for the sake of this calculation.
If you were to count the stars at a rate of one per second, it would take you 100 billion seconds to count them all. But how long is this in more understandable time units?
There are 60 seconds in a minute, 60 minutes in an hour, and 24 hours in a day. So 100 billion seconds is equal to 1.65 billion minutes, 27.8 million hours, or 1.16 million days.
Now, there are 365 days in a year, so 1.16 million days is roughly equivalent to 3,178 years. That's how long it would take you to count each star in our galaxy, assuming you could do this non-stop without breaks for sleep, meals, or anything else.
Learn more about Counting stars here:https://brainly.com/question/37411990
#SPJ12
The amount of radiation we personally encounter that originates in the Earth's and the atmosphere's natural background is?
Answer: More than half
Explanation:
The amount of radiation we personally encounter that originates in the Earth's and the atmosphere's natural background is more than half.
The reason is, since natural sources of background radiation include: cosmic rays, that is, radiation that reaches the Earth from space; rays from rocks and soil, that is, some rocks are radioactive and give off radioactive radon gas; rays from living things, like some plants absorb radioactive materials from the soil and these pass up the food chain.
And the main source of exposure for most people is naturally-occurring background radiation. Levels typically range from about 1.5 to 3.5 millisievert per year and can even be more than 50 mSv/yr.
From the above information therefore, the amount of radiation we personally encounter that originates in the Earth's and the atmosphere's natural background is more than half.
Active continental margins are characterized by which of the following?
A) No sediment accumulation
B) Shallow coastal waters
C) Deep-sea trenches
D) Sparse earthquake activity
E) Broad continental shelves
Answer:
C) Deep-sea trenches
Explanation:
There are two types of the Continental plate margins as the active and the passive and the active margins are those associated lithosphere plate boundaries and these are a transform margins and high tectonic activity zones that include the volcanoes and the earthquakes.Answer:
C) Deep-sea trenches
There are two types of the Continental plate margins as the active and the passive and the active margins are those associated lithosphere plate boundaries and these are a transform margins and high tectonic activity zones that include the volcanoes and the earthquakes.
Explanation: