Please help, I will give a free cookie
-
-
-
''NASA is currently working on...
![subject](/tpl/images/cats/biologiya.png)
Please help, I will give a free cookie
-
-
-
''NASA is currently working on sending humans to Mars by the 2030s. When astronauts arrive on Mars, NASA intends to already have their food supply there. The food will be sent by an unmanned spacecraft. It will then be stored, unrefrigerated, for five to seven years.
List at least two likely constraints and two likely criteria for this engineering design problem.''
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 11:00
Identify two examples of chemical reactions that you have encountered during the last week. identify an exothermic and endothermic reaction. explain.
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 11:40
Which of the following happened during the precambrian era? the first prokaryotic cells the first eukaryotic cells development of photosynthesis all of the above
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 12:00
Why is it to call the calvin cycle the light independent reactions vs the dark reactions
Answers: 3
You know the right answer?
Questions
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 05.07.2019 00:30
![question](/tpl/images/cats/mat.png)
Mathematics, 05.07.2019 00:30
![question](/tpl/images/cats/mat.png)
Mathematics, 05.07.2019 00:30
![question](/tpl/images/cats/istoriya.png)
History, 05.07.2019 00:30
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.07.2019 00:30
![question](/tpl/images/cats/mat.png)
Mathematics, 05.07.2019 00:30
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.07.2019 00:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 05.07.2019 00:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 05.07.2019 00:30
![question](/tpl/images/cats/himiya.png)
Chemistry, 05.07.2019 00:30