Hemoglobin is the pigment in red blood cells responsible for carrying oxygen
The northern hemisphere is warmer in the summer than the winter because the northern hemisphere are pointing toward the sun. Because of this the rays hit us more directly making is hotter. So during the winter when the northern hemisphere is not pointing toward us, it makes is colder. It also depends on the tilt of the axis. When it is more direct it makes the temperature hotter.
D - Good conductors of electricity :)
The correct answer is option D. copper (Cu)
Malleability is the ability of metals to be hammered into sheets.
Metals are often required for different applications. The ability of metals to be hammered into sheets is called malleability.
Malleability of a metal is closely related to its density. The denser the metal, the less easily malleable it is.
Both copper and strontium are metals but copper is denser than strontium hence copper is less malleable than strontium.
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