![subject](/tpl/images/cats/biologiya.png)
Auroras are lights that appear at earth’s northern and southern poles. what is the main cause of an aurora? a. solar wind enters earth’s atmosphere, and particles interact with ions. b. bubbles of gas are ejected from earth’s outer crust. c. sunlight reflects off the surface of the moon during an eclipse. d. the northern and southern poles are cooler than the rest of earth.
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 16:00
Which of the following is a main difference in cell structure between an onion cell and a human cheek cell? a. an onion cell contains one nucleus, whereas a human cheek cell contains two nuclei. b. an onion cell has a cell wall. c. a human cheek cell contains chloroplasts. d. there is no difference between an onion cell and a human cheek cell. you for your.
Answers: 2
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 04:00
The transport tubes from food came down the plant are called?
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 16:00
Fill in the blank with the correct sphere label. a: ⇒ geosphere b: ⇒ biosphere c: ⇒ hydrosphere
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 18:00
Select the correct answer. for their summer holiday, jane and her family are visiting places surrounding the mediterranean sea. which type of biome is jane and her family visiting? a. rainforest b. shrubland c. tundra d. coniferous forest reset next
Answers: 1
You know the right answer?
Auroras are lights that appear at earth’s northern and southern poles. what is the main cause of an...
Questions
![question](/tpl/images/cats/biologiya.png)
Biology, 27.01.2021 22:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 27.01.2021 22:20
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 27.01.2021 22:20
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.01.2021 22:20
![question](/tpl/images/cats/istoriya.png)
History, 27.01.2021 22:20
![question](/tpl/images/cats/biologiya.png)
Biology, 27.01.2021 22:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.01.2021 22:20
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.01.2021 22:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.01.2021 22:20
![question](/tpl/images/cats/mat.png)
Mathematics, 27.01.2021 22:20