Which of the following types of technologies has best scientists to study very high-energy objects in outer space, such as exploding supernovae, black holes, and pulsars?

a.

radio telescopes

b.

space stations

c.

x-ray telescopes

d.

lunar modules

Very high-energy objects and events spit out very high-energy photons, so the instrument you need in order to detect them is the       X-ray telescope. (C)  

Inconveniently, X-ray telescopes only work when they're up in orbit, because X-rays get seriously soaked up in Earth's atmosphere, and most of them never make it down to the surface ... (lucky for us !) .

X-Ray telescopes are the one which helped the scientist to study very high energy objects in outer space such as exploding supernovae, black holes and pulsars efficiently.

C

Explanation:

The X-rays can penetrate through larger distance and also through the mirrors of the satellite at grazing angle with least diffraction.

The X-rays are emitted in the form of high energy photons during explosions of supernovae, black holes and pulsars.

All kinds of explosions in the space release light and heat. From the heat energy X-rays will also be released during these explosions. So these X-rays emitted during explosions can be detected by a space telescope with X-ray detector mostly photo detector.

As soft X-rays can easily penetrate the mirror of the satellite containing the telescope, soft x-rays can be detected in space.

The X-ray telescopes could be used once the telescope is placed in space because most of the x-rays will be absorbed in the earth's atmosphere if the telescope is used in earth.

So by satellites, the telescope is made to reach the uppermost layer of atmosphere or in space such that x-rays could be detected.

-first use of geothermal energy occurred more than 10,000 years ago in north america by american paleo-indians

-the first industrial use of geothermal energy began near pisa, italy in late 18th century

-in 1904, italian scientist piero ginori conti invented the first geothermal electric power plant in which steam was used to generate the power

-with the above experiment, the first geothermal plant in usa started in 1922 with a capacity of 250 kilowatts

-however, in 1946 first ground-source geothermal heat pump installed at commonwealth building in portland, oregon

-during the 1960’s, pacific gas and electric began operation of first large scale geothermal power plant in san francisco, producing 11 megawatts

-in 1973, when oil crisis began many countries began looking for renewable energy sources and by 1980’s geothermal heat pumps (ghp) started gaining popularity in order to reduce heating and cooling costs

-as effect of climate change started showing results, governments of various countries joined hands to fight against it, for which kyoto protocol was signed in japan in 1997, laid out emission targets for rich countries and required that they transfer funds and technology to developing countries, 184 countries have ratified it

hope this