Answer:
Iron is an essential element for production of blood cells in the body.
70% of iron in the body is composed in blood haemoglobin.
Answer:
its "up, then down, then up"
Explanation:
Answer:
B
Explanation:
Inert means it does not react with other things like oxygen ( to make oxide) or tarnish etc
Answer:
The energy received by Earth from the sun is called solar radiation. This includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays. Radiation also transfers heat.
Explanation:
Earth receives radiation from the sun, the radiation we receive from the sun is known as the electromagnetic spectrum. The electromagnetic spectrum spectrum includes all the types of radiation we receive, from radio waves to gamma rays.
Answer:
(a) has the highest frequency
Explanation:
E = hf...where E(is the energy of a photon);h(is the planck's constant) and f is the frequency of the photon
Whereby this formula shows us that energy of a photon is directly proportional to its frequency
So hence if the energy is high then the frequency of the photon is also high
