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Diamond is currently thought to be the hardest natural material on Earth, having a hardness of ten out of ten on the Mohs scale of mineral hardness. Diamond is made up of carbon atoms which share strong covalent bonds (where electrons are shared between atoms) and are equally spaced in a lattice arrangement.

Snail is a mollusc, and molluscs have the pigment haemocyanin (containing Copper) in their blood. Hence their blood is Blue in colour.

It will appear totally black.When you see an object all colours except the one of the object is absorbed.So in red light green leaf will absorb red and it will become black.

Refraction occurs as velocity of light is different in different media.

An androgen is any natural or synthetic steroid hormone that regulates the development and maintenance of male characteristics in vertebrates by binding to androgen receptors. This includes the embryological development of the primary male sex organs, and the development of male secondary sex characteristics at puberty. Androgens are synthesized in the testes, the ovaries, and the adrenal glands.

Ayrshire cattle are a breed of dairy cattle from Ayrshire in southwest Scotland.Ayrshires typically have red and white markings; the red can range from a shade of orange to a dark brown. They are known for their hardiness and their ability to convert grass into milk efficiently.

Adhesion of water to the walls of a vessel will cause an upward force on the liquid at the edges and result in a meniscus which turns upward. The surface tension acts to hold the surface intact. Capillary action occurs when the adhesion to the walls is stronger than the cohesive forces between the liquid molecules.

Tellicherry goats are also known or called as Malabari.

Malabar grey hornbill. The Malabar grey hornbill (Ocyceros griseus) is a hornbill endemic to the Western Ghats and associated hills of southern India. They have a large beak but lack the casque that is prominent in some other hornbill species.

Stomata may be found on any part of the leaf, or not at all. This depends on the species.
In a normal plant, stomata are usually on the lower side of the leaf, trees like pine have stomata all around their needles. If the leaf is floating (e.g. water lily) the stomata will be on the top.

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