the black tide - Oil spills in the sea lead to a black tide.
 |  Environmental problems |
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 Leila Casarin (57)
 busuu Challenge You and Leila Casarin will have to complete 3 units in 24 hours in order to win 50 busuu-berries  !Remember, doing a busuu Challenge requires a bet of 50 busuu-berries, so make it count! busuu Challenge Leila Casarin just accepted your challenge! Go!busuu Challenge Sorry, Leila Casarin didn’t accept your challenge! Why not challenge someone else? Go to Challenge areabusuu Challenge We sent an email to Leila Casarin! Leila Casarin has 24 hours to accept and start your challenge! Remember you can only challenge one user at a time! |
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Sat, 02/09/2013 - 02:12
 Leader_94 (19)
 busuu Challenge You and Leader_94 will have to complete 3 units in 24 hours in order to win 50 busuu-berries !Remember, doing a busuu Challenge requires a bet of 50 busuu-berries, so make it count! busuu Challenge Leader_94 just accepted your challenge! Go!busuu Challenge Sorry, Leader_94 didn’t accept your challenge! Why not challenge someone else? Go to Challenge areabusuu Challenge We sent an email to Leader_94! Leader_94 has 24 hours to accept and start your challenge! Remember you can only challenge one user at a time! |
good |
| 09/02/2013 01:12 | 0 |
Sat, 02/09/2013 - 11:36
 llakii (21)
 busuu Challenge You and llakii will have to complete 3 units in 24 hours in order to win 50 busuu-berries !Remember, doing a busuu Challenge requires a bet of 50 busuu-berries, so make it count! busuu Challenge llakii just accepted your challenge! Go!busuu Challenge Sorry, llakii didn’t accept your challenge! Why not challenge someone else? Go to Challenge areabusuu Challenge We sent an email to llakii! llakii has 24 hours to accept and start your challenge! Remember you can only challenge one user at a time! |
Ok. |
| 09/02/2013 10:36 | 0 |
Choose one of the photographs and explain the possible causes that this natural disaster may have.