Questions with the keyword 'blue'

• why is the sky blue by anon-244585 to Ondrej, Jordan, Eleanor, Ed, Christine, Alice Comments: (No comments so far )
• how is the sea blue ,but if you put it in your hand or a bucket it is clear ? it couldnt be the sky because at night by anon-244579 to Ondrej, Jordan, Eleanor, Ed, Christine, Alice Comments: (No comments so far )