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Cross-section Dicot, Monocot and Root of Plant Stem under the microscope for classroom education.

Scenery at Dragon Point in Black Canyon of the Gunnison National Park, Colorado, USA

White gooseneck loosestrife, Lysimachia clethroides, white flower spike in close up with a blurred background of leaves.

Clover, also called trefoil, are plants of the genus Trifolium, consisting of about 300 species of flowering plants in the legume family Fabaceae originating in Europe.

$Wet rough asphalt black bitumen road pavement surface abstract grunge texture close-up top view background banner.\nBitumen is a sticky, black, highly viscous liquid or semi-solid form of petroleum. In the U.S., it is commonly referred to as asphalt. It may be found in natural deposits or may be a refined product, and is classed as a pitch. Before the 20th century, the term asphaltum was also used.\nTarmacadam is a road surfacing material made by combining crushed stone, sand, and tar. It is a more durable and dust-free enhancement of simple compacted stone macadam surfaces. The terms \$