![subject](/tpl/images/cats/geografiya.png)
Geography, 07.04.2020 19:54 lafuiciosa10
Protostars are difficult to observe because . a. they are surrounded by cocoons of gas and dust. b. they radiate mainly in the ultraviolet part of the spectrum. c. they are too far away to be observed from the Earth the protostar stage is way too short (less than 1 year)
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Geography
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 23.06.2019 02:00
Read the article titled "trans-saharan migration routes to north africa and the eu: historical roots and current trends." why do tens of thousands of sub-saharan africans try to cross the mediterranean each year? how are these refugees commonly portrayed? (site 1)
Answers: 3
![question](/tpl/images/cats/geografiya.png)
Geography, 23.06.2019 14:30
What factors britain to become an industrial and commercial power?
Answers: 1
![question](/tpl/images/cats/geografiya.png)
Geography, 23.06.2019 15:50
A2 cm object is 10 cm from a convex lens that has a focal length of 4.4 cm, the image is 8cm from the lensz the height of the image, to the tenths place is
Answers: 3
You know the right answer?
Protostars are difficult to observe because . a. they are surrounded by cocoons of gas and dust. b....
Questions
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.05.2020 08:41
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 06.05.2020 08:41
![question](/tpl/images/cats/istoriya.png)
History, 06.05.2020 08:41
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.05.2020 08:41
![question](/tpl/images/cats/istoriya.png)
History, 06.05.2020 08:41
![question](/tpl/images/cats/istoriya.png)
History, 06.05.2020 08:41
![question](/tpl/images/cats/biologiya.png)
Biology, 06.05.2020 08:41
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.05.2020 08:41
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.05.2020 08:41
![question](/tpl/images/cats/mat.png)
Mathematics, 06.05.2020 08:41