Question: The abbreviation myr, "million years", is a unit of a quantity of (i.e. ) years, or 31.6 teraseconds.

Myr is in common use where the term is often written, such as in Earth science and cosmology. Myr is seen with "mya", "million years ago". Together they make a reference system, one to a quantity, the other to a particular place in a year numbering system that is "time before the present".

Myr is deprecated in geology, but in astronomy "myr" is standard. Where "myr" "is" seen in geology it is usually "Myr" (a unit of mega-years). In astronomy it is usually "MYR" (million years).

In geology the debate of the millennia concerns the use of "myr" remains open concerning "the use of "Myr" plus "Mya"" versus "using "Mya" only". In either case the term "Ma" is used in geology literature conforming to ISO 31-1 (now ISO 80000-3) and NIST 811 recommended practices. Traditional style geology literature is written The "ago" is implied, so that any such year number "X Ma" between 66 and 145 is "Cretaceous", for good reason. But the counter argument is that having "myr" for a duration and "Mya" for an age mixes unit systems, and tempts capitalization errors: "million" need not be capitalized, but "mega" must be; "ma" would technically imply a "milliyear" (a thousandth of a year, or 8 hours). On this side of the debate, one avoids "myr" and simply adds "ago" explicitly (or adds "BP"), as in In this case, "79 Ma" means only a quantity of 79 million years, without the meaning of "79 million years ago". 1. is myr roughly the same as mya in amount?
2. what does mya stand for?
3. and myr?
4. how many teraseconds does it represent?
5. do they use it in astronomy?
6. how about in geology?
7. is there a debate between myr and mya usage?
8. which one is favored?
9. is myr avoided?
10. how do they do that?
11. which iso does ma conform to?
12. what NIST recommended practice does it conform to? Provide a numbered list of answers.
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A numbered of answers: 1. yes
2. million years ago
3. million years
4. 31.6
5. yes
6. no
7. yes
8. the term "Ma"
9. yes
10. one avoids "myr" and simply adds "ago" explicitly
11. ISO 31-1 (now ISO 80000-3)
12. NIST 811

Question: Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. Europe is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, and the Mediterranean Sea to the south. It comprises the westernmost part of Eurasia. Europe is generally considered as separated from Asia by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways of the Turkish Straits. Yet the non-oceanic borders of Europea concept dating back to classical antiquityare arbitrary and amount to a historical and social construct. The primarily physiographic term "continent" as applied to Europe also incorporates cultural and political elements whose discontinuities are not always reflected by the continent's current overland boundary with Asia.

Europe covers about , or 2% of the Earth's surface (6.8% of land area). Politically, Europe is divided into about fifty sovereign states of which the Russian Federation is the largest and most populous, spanning 39% of the continent and comprising 15% of its population. Europe had a total population of about /1e6 round 0million (about 11% of world population) . The European climate is largely affected by warm Atlantic currents that temper winters and summers on much of the continent, even at latitudes along which the climate in Asia and North America is severe. Further from the sea, seasonal differences are more noticeable than close to the coast. 1. what country is located completely in the northern hemisphere?
2. does it occupy any other part of the earth?
3. How much land does it include?
4. how much land?
5. does it have any states?
6. are they sovereign states?
7. which is the largest?
8. does it have a large percentage of the population?
9. what is the total population of europe?
10. is it bordered by oceans?
11. what ocean lies to the north of it?
12. what affects it's climate?
13. how do they affect the summers?
14. is there a sea near it?
15. what is it called?
16. and what direction is it from Europe?
17. is it by any other countries?
18. how many?
19. what is it called?
20. does any land masses separate the two countries? Provide a numbered list of answers.
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A numbered of answers: 1. Europe
2. mostly in the Eastern Hemisphere
3. 2% of the Earth's surface
4. 6.8%
5. yes
6. yes
7. the Russian Federation
8. yes
9. about 11% of world population
10. yes
11. the Arctic Ocean
12. Atlantic currents
13. it tempers them
14. yes
15. the Mediterranean Sea
16. south
17. yes
18. One
19. Asia
20. no

Question: The kids were playing outside. They were drawing with chalk. They drew many things with the chalk. One of those things was a star. There was nothing else for them to do because it was the weekend. Then they stopped drawing with the chalk a little later. They did not want to go on because they were tired. They walked a little then started to splash by the lake that was nearby instead. They thought it was a good idea because it was a hot day. They played for hours. They were making a lot of noise and laughing and talking. They went home. They did this because they were very tired. They all ate some bread. They were now quiet. They couldn't have anything else to eat until their mother called them for dinner. They waited and did not say a word. They were resting. Soon it would be time for the family meal. 1. What were the kids doing?
2. Where?
3. Doing what?
4. with what?
5. What did they draw?
6. Like what?
7. Did they have anything else to do?
8. Why?
9. When did they stop drawing?
10. Why?
11. Where did they go?
12. What did they do there?
13. Was it close?
14. What did they think?
15. why?
16. Did they play long?
17. how long?
18. What were they doing?
19. What else?
20. anything else? Provide a numbered list of answers.
****
A numbered of answers:
1. playing
2. outside
3. drawing
4. chalk
5. many things
6. a star.
7. No
8. it was the weekend
9. a little later
10. they were tired
11. the lake
12. They splashed
13. yes
14. it was a good idea
15. it was a hot day
16. yes
17. hours
18. making noise
19. laughing
20. talking