Answer and Explanation,
Sand dollar, any of the invertebrate marine animals of the order Clypeastroida (class Echinoidea, phylum Echinodermata) that has a flat, disk-shaped body. They are close relatives of sea urchins and heart urchins. The sand dollar is particularly well adapted for burrowing in sandy substrates. Very small spines used for digging and crawling cover the entire surface of its body and are appressed backwards toward the posterior anus. The mouth is located in the centre of the body’s underside. The upper surface exhibits pentaradiate symmetry, with a pattern of five “petals” spreading out from the centre. Some species found stranded on the shores of North America have five or six slots, or lunules, through the test (external skeleton). Most sand dollars measure from 5 to 10 cm (2 to 4 inches) in diameter. Species of comparable size occur in shallow coastal waters throughout the rest of the world, except in Europe and Antarctica.
The electron is found outside of the nucleus while both the protons and neutrons are found inside of it. <span />
Answer:Plate Tectonics : Different Plate Boundaries Create Different Landforms and ... Plate Boundary: CONVERGENT ... As the MORE DENSE oceanic plate (OP) subducts under ... Illustration of what is happening ... Two continental plates (CP) move away from each other ... Sea Floor spreading occurs at these mid-ocean ridges.
Explanation:
I think the answer is thermal!
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Brainiest please:)
Answer:
Atom has the tendency to attain stable electronic configuration of the nearest noble gas in accordance with the duplet and octet rule.hence,when an atom gains electron it becomes negatively charged and that is its negative charge making it an anion
