Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Mars- the Red Planet
After Venus, Mars is our closest neighbour. It seems very earth-like. There are ice-caps on its poles, drifting white clouds and raging dust storms in its atmosphere. Seasonally changing patterns occur on its red surface. There are large dark areas on its surface called maria (meaning 'seas'). It even has a twenty-four-hour day. Mars experiences summer and winter seasons, each of which lasts for almost six earth mkths. However, the planet's distance from the Sun causes these seasonal changes to be more extreme. It is tempting to think of Mars as an inhabited world. In 1877, the Italian astronomer, Schiaparelli, observed an intricate network of single and double lines criss-crossing the bright arps of the planet Mars. He gave them the name of canali. Canali in Italian means channels or erooves. But it was promptly translated into English as 'canals'. Slnce then, people have wondered who had ma& these canals and how. Were there living- beings on the planets? Many satellites have now been sent into orbit around Mars. Two automated laboratori,es have been landed on its surface. The entire planet has been mapped. Martian surface has craters of sizes, ranging from 5 km to 121 km in diameter, created by meteorite impact. It its has enormous volcanoes.
The largest volcano on Mars, Olympus Mons or Mount Olympus is nearly three times as high as Mount Everest. It is not active any more. The Martian surface has deep ridges and valleys. Pictures alsa show islands made where water once flowed around the existing craters, and river beds, dry for hundreds of millions of years. The surface features indicate that Mars may have had both atmospher~ and ocean in the past. Viking space probes, send by U.S.A., did find evidence that 'liquid water once flowed on the planet and the atmosphere was also more dense than what it is now. Martian soil is mostly like the Earth's soil made up mainly of silicates. However, about 16 per cent of the soil is made up of iron oxide, giving it its red colour.
Define Age Related Changes in Blood Blood: Here the haemopoiesis (the formation of blood cells) slows down. Fatty marrows replace the heamopoietic (red) marrow. Thus, the proli
stick pictures of carbohydrates,fates,proteins,minerals&different types of vitamin containing foods
how is metal tyre fitted onthe wheel of bullock cart
Explain the Urinary Bladder The urinary bladder is a sac, which acts as a reservoir for urine. You would realize that the size and position of the urinary bladder varies depend
Explain the Adrenal Medulla The adrenal medulla secretes epinephrine or adrenaline and norepinephrine or noradrenaline. The secretory cells of the medulla are modified postgang
WIRING A PLUG TO AN APPLIANCE In the previous activity, you worked out the operating current of different electrical equipment/appliances and suggested proper fuse and plug
formulation of RDA
Explain the Dichromates or Mild Colour Blindness A dichromate individual possesses only two cone pigments. Lack of the red pigment, called protanopia, makes distinguishing of t
Explain Idiopathic Thrombocytopenic Purpura "Thrombocytopenic" means the blood doesn't comprise adequate platelets. "Purpura" means a person has excessive bruising. You may als
Determine the Agronomic factors of fertilizers These factors are key to efficient use of fertilizers for crop production and include fertilizer responsiveness of crops, spacing
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd