APRIL 3 Scientists have many problems that they are working on but are unable to reach a useful solution. There are a number of

constraints that can make problems unable to have a solution. Match the current scientific problem and the major

constraint to finding a solution.

Available technology

Alternative energy resources

Cost and technology

Identifying life on other planets

Political and moral issues

Ocean desalination

Political issues and public interest

Using nuclear fusion as an energy source

Cost

Using stem cell technology to cure disease

only b 

D. pray lands grasslands swamps

This is s cute awee : (( . well if she's showing you signs that she may like you , then shoot your shot ! don't be afraid . & if you're unsure that she's giving you these signs , then wait out for a little bit . most girls are different . some may act really sweet , but only bc you're a good friend of hers . that , or she might like you . you just never know . but i think you should sit down with her & tell her how you feel . but don't be awkward & shy . just be straight up & tell her how you feel . if the feelings aren't mutual , then don't cry about it . you need to respect her decision & look for others in the world . feelings can be difficult & confusing , but don't be afraid to show them . i say you play it out & if you're still unsure about it , talk to her . - rach