Question: Which stars are composed of matter in which electrons have combined with protons

 They are called neutron star, they are the  smallest and dense stars known.

Question: The jovian planets contain large quantities of ices because

The jovian planet contain large ices because it is further away from the sun , the average temperature are extremely close to the freezing point of many gases , the average temperature in most of these planet is below the freezing point of most of their these gases.

Question:The rate at which temperature changes with depth below earth surface is called

 It is called geothermal gradient , it is the rate t which the temperature will increase with depth. It has an average increase of 25°c  per kilometer.

Question:which property of an optical telescope is associated with sharper image

answer this question

Question: What Effect Do Solar Flares Have On Earth

 Our earth is protected from most of the radiations emitted by the solar flare  by the earth magnetic field and atmosphere , despites this, some of the effect of the solar flare are the distortion of radio communication  they cause the earth outer atmosphere to expand  etc.

Can You Answer these Questions about Blackbody Radiation

Questions about blackbody radiation

1.   How does object behave in when impinge by visible light

2.   What is a black body

3.   is a good absorber of radiation a good emitter

4.   regarding the visible spectrum, what is the relationship between color and wavelength?

A blackbody is a surface that emit radiations at all wavelength of electromagnetic spectrum, at all temperature and at all angle of incidence. It is an idealized body that is regarded as a perfect  absorber as well as a perfect emitter.

 At a given temperature , a blackbody is one that emits the  maximum amount of energy at each wavelength , with blackdody radiations

 All substances with body temperature above the absolute zero kelvin constantly emit energy in the form of radiations . The radiant energy is usually transported by electromagnetic waves  in accordance with classical electromagnetic theory or alternately  by photons in accordance with quantum mechanics. In most cases the wave theory is frequently adopted for explaining the radiation phenomenon  in spites of its shortcomings.

  The nature of radiations is the same since it require no carrying medium for propagations and it travels at the same speed as light. The difference between one radiation to another only lies in its frequency an wavelength which are related by  c=fλ, where c is the speed of light , f is the frequency and  λ is the wavelength .

 When an incident ray impinges on a body, part of it is absorbed, reflected or transmitted depending on the nature of the body. If the body is n opaque, most of the radiation will only be absorbed and not reflected or transmitted, when the object is transparent most of  the ray will be transmitted ,when the object is translucent the light will be scattered, when the body is white most of the ray will be reflected but when the body is black most of the ray will be absorb.

Visible light has colors and each color correspond to wavelength,  all object  when exposed to visible light will only reflect the spectrum that corresponds to its color but absorbed all other colors, for example a red object will absorb all other spectra but reflect red colors of visible light, a blue object will reflect blue spectra but absorb all other wavelength.  A  black object will absorb all but reflect none of the spectrum of the electromagnetic radiations while a transparent body will transmit all but absorb nor reflect  none of the wavelength of the electromagnetic radiations. Or a blackbody will emit all but reflect none of the spectrum of the electromagnetic radiations while a transparent body will transmit all but absorb nor reflect  none of the wavelength of the electromagnetic radiations

 Therefore a blackbody is a good absorber of radiation and  a good emitter.

Do You Know this Harmful Effects of Ozone Layer Depletion can Affect you

Harmful effects of ozone layer depletion

Ultra violet  radiations are very harmful to the human body, animals, plant and inorganic minerals.

The great consequence of ozone layer depletion to human being are sun burn, more skin cancer and premature aging of the skin. Weakening of human immune system, cataracts, blindness and more skin more eye disease.

 Ultra violet radiations has effect on many plants and animals, many plants are sensitive to its effects, man crop species are like wheat, oat , soyabean affected through reduced growth, photosynthesis and flowering.

Planktons are affected, and this will disrupt the balance between salt water and fresh water in marine life.

Eye and skin cancer can also occur in domestic animals and lastly the word, plastic and rubber are degraded as a result of overexposure to uv rays.