B. Because of the presence of hydrogen sulphide in Brass, it combines with oxygen in air and form water, evaporates. So remained sulphide is colourless in air .So Brass gets discoloured in the air.
Answer:
The spinal cord is divided into 31 segments that send nerve rootlets out into the body through intervertebral foramen. These neurons travel into the spinal cord via the dorsal roots. Ventral roots consist of axons from motor neurons, which bring information to the periphery from cell bodies within the CNS.
Explanation:
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Answer:
C. Sunlight penetrates to greater depths in land than water
Explanation:
Water is a poor conductor of heat which is why it takes much longer for water to conduct heat than it does land.
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They are reactants because they are present before the reaction.
The first one because ladybugs r apart of the environment and r helping to keep aphids under control
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