If you enjoyed this video you may enjoy the Earth Science Course with an emphasis on Geology. The course includes 13 videos along with a study guide and an answer key for each guide. In addition there is a short enrichment activity for each video. Link to the playlist here. ru-vid.com/group/PLurjkZV1ykGayCW0Ep-c8W9NTyuywSdZ1&si=877N7RkqKmzryc5j
أنا من العراق والان لدي اختبار ولدي سؤال تعريف الأفق وانا لا اعرف ماذا يعني أفق 😂 لدي سؤال جميع تعاريف الأفق والافق o و a و b و c ملاحظة انا ادرس في ثانوية زراعية ياله من تعليم سيء لا يوجد مستقبل في العراق 😂
0:09 poorest misinformed root structure illustration. As entire root system does not shower downward. Rather Imperical evidence reveals early taproot extending vertically downward first two years then horizontal root growth takes over by extending laterally off of taproot. Next layers of shallow & deeper horizontal roots paralleling upper grade level sporadically set their own vertical sink roots on downward search for caves & natural springs. While multiple levels of horizontal within first several feet of soil perpously extend fibrous feeder roots from new tips striking out well past parkway sidewalks in search of much more distant soil rizosphere hunting grounds a half block away or even farther. As older portions of maturing roots that started back nerror tree develop into structural appendages continue to increase in girth for remaining life of tree. .
