I love these 'facts' and find them very inspirational. But the photos, are they your original shots? I suggest you include a line somewhere observing that they are your own original photos. But if they are not, a recommend you credit the original owners, making sure to confirm whether the pictures are not copy right protected.
I collected these pictures from free sources and my goal was only interest and drew the public attention to some facts around us and I hope to correct the general behavior of people..
Thank you for your observation
Okay, that is okay....normally to avoid being mistaken, it is recommended you nonetheless quote the free sources...not a must, but most of those high SP voters, and curators of some reputation plankton/minnow supporting groups would prefer if you quote those sources, free or not, to best qualify for their immediate support. But it is not a must, if you are sure they are free..
Otherwise thanks for responding.