tag is defined in the HTML Living Standard specification. (d) gravity Answer: (a). ... (i.e. The different names of these angles depend on the status, inferior or superior, of the planet. The Law of Periods: The square of the period of any planet is proportional to the cube of the semimajor axis of its orbit. Answer: (b) (c) The phase changes of a planet We’ve created a new way to explore the fundamental constituents of the universe. 127) A blue shift means a Doppler shift of light from a(an). (d) cosmology (d) fixed star. In short, the conventional picture of a universe with numbers of elementary particles, controlled and mediated by a set of force fields, is not really an accurate picture of the universe, given our present-day known structure of physical laws (quantum field theory and general relativity). 141) What process produces a star’s energy? (b) Juno. Most of the candidates score less in this paper. 142) What is the most distant object in the sky that the human eye can see without optical instruments? (c) asteroids (c) Quasar. Its next perihelion passage will be in early 2062. (b) Stars The crust makes up less than 1 percent of Earth by mass, consisting of oceanic crust and continental crust is often more felsic rock. (b) they have nearly circular orbits Use data to draw conclusions about the major components of the universe 0607.6.1 Links verified 7/25/2014. (function() { (d) effect of the moon on the Earth’s orbit. 123) What causes the gas tail of a comet to always point away from the sun? (c) latitude. Although its size is hard to comprehend, investigating its structure and composition gives us a better understanding of its primary building blocks. This chart shows composition of the Universe. (c) The Milky Way 145) The same side of the moon always faces the Earth because: I. 90% Hydrogen, 10% Nitrogen (b). (c) 1212 (d) 1743 2. About 73% of the Sun’s mass is hydrogen, and another 25% is helium. (b) diameter of the objective (b) The Andromeda Galaxy somewhat relativistic. (c) Earth and Mars (d) solstice. (b) The photosphere (d) several ancient civilizations in 236 B.C. Hi Super Science! (a) the top to the tube Some of the worksheets for this concept are The universe work, Unit 2 resources composition of earth, The origin and structure of the universe, Our place in our galaxy, A n i n t r o d u c t i o n, Unit earth and space science the structure of the cosmos, The solar system, Introduction to astronomy. 135) Why do we see lunar eclipses much more often than solar eclipses? This was an important piece of supporting evidence for the Big Bang theory… Overall, the Earth’s albedo has a cooling effect. The atmosphere of Venus is composed of about 96% carbon dioxide, with most … various other corrosive compounds, and the atmosphere contains little water. 140) The mean distance of the earth from the sun in astronomical units is: var hs = document.createElement('script'); hs.type = 'text/javascript'; hs.async = true; (a) hydrogen and oxygen combustion (a) orange (b) violet ... General Science CSS Past Paper 2017 in pdf download online: (b) Jupiter (d) square Constituents and Structure: “Universe, Galaxy. 104) A planet is said to be at aphelion when it is: Structure and Composition of the Earth’s Atmosphere Earth is the only planet in the solar system with an atmosphere that can sustain life as we know it. Earth’s atmosphere not only contains the air that we breathe but also protects it from the blasts of meteors that are constantly being hurtled towards it. The Van Allen belts are a collection of charged particles, gathered in place by Earth’s magnetic field. The atmosphere of Mars is about 100 times thinner than Earth’s, and it is 95 percent carbon dioxide. (c) green (d) red In approximately 4.5 billion years the Andromeda Galaxy and the Milky Way are expected to collide and the result will be a giant elliptical galaxy. _Hasync.push(['Histats.start', '1,3926547,4,408,270,55,00011111']); HTML templates. The Composition and Structure of Earth. Minerals. (b) blue star. Amazing Space is a set of web-based activities primarily designed for classroom use, but made available for all to enjoy. Chemistry refers to different materials, and physical properties refers to such things as whether the materials are solids or liquids, etc. NASA.gov brings you the latest images, videos and news from America's space agency. Terrestrial planets are therefore those that are “Earth-like”, meaning they are similar in structure and composition to planet Earth. and nobody has a very good idea of what that is. Or is the “galaxy” structure the largest single independent organized type of structure in the universe and anything beyond that just one big disorganized mess? * Normal non-luminous matter (black holes and intergalactic gas): 3.6% * Dark Matter: 21% * Dark Energy: 75% 1.1 Normal matter forms 4% of the universe and is made up of atoms of chemical elements. Answer: (b) 125) Of the following, which is the only planet which CANNOT be seen with the unaided eye? Answer: (d) Currently the North Star is Polaris in the constellation Ursa Minor. Answer: (d). Processes of Nature —Solar and Lunar Eclipses Day and Night and their variation. Answer: (c) Although its size is hard to comprehend, investigating its structure and composition gives us a better understanding of its primary building blocks. (a) 1971 (b) 1972 Answer: (b) NASA.gov brings you the latest images, videos and news from America's space agency. In the Doppler effect for visible light, the frequency is shifted toward the blue end of the spectrum when the light source (such as a star) is approaching. 3. In addition, the combination of Earth’s size, mass and density also results in a surface gravity of 9.8 m/s². (a) black hole Lunar and solar eclipses occur with about equal frequency. It turns out that the Sun contains the same elements as Earth but not in the same proportions. Answer: (c), 113) The rocks that enter the earth’s atmosphere and blaze a trail all the way to the ground and do not burn up completely are known as: (b) billions of tiny solid particles About 73% of the Sun’s mass is hydrogen, and another 25% is helium. Capable of isolating CSS and JavaScript, almost like an