الماء على سطح الأرض يعادل. الأرض

Platt, Jane; Bell, Brian 3 April 2014 "A model for the evolution of strontium and lead isotopes in a dynamic earth"
"Clergy views on evolution, creationism, science, and religion" Proceedings National Academy of Science

نسبة الماء في الكرة الارضية

Museum of Natural History, Oregon.

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الماء على سطح الأرض يعادل
Secretariat of the Convention on Biological Diversity
الماء على سطح الأرض
International Earth Rotation and Reference Systems Service IERS
كم يغطي الماء من الأرض
Journal of Research in Science Teaching
"Did Edmund Hillary Climb the Wrong Mountain" Non-vertebrate Paleontology Laboratory, Texas Memorial Museum
, 1 Mb Flash multilingual animation highlighting the often-overlooked evaporation from bare soil, from managingwholes Explanatory Supplement to the Astronomical Almanac

يغطي الماء من مساحة سطح الارض

Scripps Institution of Oceanography Archives.

محيط عملاق في باطن الأرض يحمي الحياة على سطحها
Online Astronomy eText Table of Contents
علم المياه
"Group 29: Multi-axes symmetric, both soft and straight-lined, closed signs with crossing lines"
ضغط جوي
Bulletin of the Geological Society of America