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The phases of the moon as we see from the Earth are due to changing relative positions of the sun, the earth and the moon. Which of the following statements is true. A. on a full moon day, the earth comes between the sun and the moon B. on a new moon day, the moon is in between the earth and the sun C. on a full moon day, the moon is in between the earth and the sun D. on a new moon day, the earth is between the sun and the moon? E. on a new moon day, the sun is between the moon and the earth
Which of the following statements is/are correct? 1. The earth is nearest to the Sun at Perihelion, which generally occurs on January 3. 2. The earth is farthest away from the Sun at Perihelion, which generally occurs on July 4. 3. The earth is farthest away from the Sun at Aphelion, which generally occurs on July 4. 4. The earth is nearest to the Sun at Aphelion, which generally occurs on January 3. Select the correct answer using the code given below:
In the following question, sentences of a paragraph have been jumbled and labelled as A, B, C and D. You are required to rearrange the jumbled sentences of the paragraph and mark your response accordingly by selecting the correct option. A: Historically, volcanic eruptions have caused catastrophic famines. B: Large eruptions can affect temperature as ash and droplets of sulfuric acid obscure the sun and cool the Earth's lower atmosphere (or troposphere); however, they also absorb heat radiated from the Earth, thereby warming the upper atmosphere (or stratosphere). C: One such hazard is that volcanic ash can be a threat to aircraft, in particular those with jet engines where ash particles can be melted by the high operating temperature; the melted particles then adhere to the turbine blades and alter their shape, disrupting the operation of the turbine. D: Erupting volcanoes can pose many hazards, not only in the immediate vicinity of the eruption.
The moon looks blood red during a total lunar eclipse because some of the sunlight passes through Earth’s atmosphere to reach the moon. As the white light breaks up while passing through the atmosphere, most of its blue-colored wavelengths are absorbed and scattered. The remaining red wavelengths light up the moon in blood-red color. Which of the following statements do not support the assertion of the above-given statement? I: The moon looks blood red during a total lunar eclipse as the white light breaks up due to the Earth's atmosphere where most of its red-colored wavelengths are absorbed. II: The moon looks blood red during a total lunar eclipse as the earth blocks the white light to travel to the moon.
In the following question, four statements are given followed by four conclusions I, II, III and IV. You have to consider the given statements to be true even, if they seem to be at variance with commonly known facts. Read all the conclusions and decide which of the following logically follows from the given statements disregarding the commonly known facts. Statements: All Planet are Sun. All Object are Air. All Planet are Earth. No Air is Sun. Conclusions: I. All Air being Earth is a possibility. II. Some Object are Sun. III. Some Earth are Sun. IV. No planet is Air.
Given below are four jumbled sentences. Select the option that gives their correct order. A.The axis of rotation of the Earth when compared to the Earth's orbit around the Sun. B.The only astronomical object that is known to harbour life, is the Earth which is the third planet from the sun. C.As a result, the Northern and the Southern hemispheres point toward or away from the Sun. D.It revolves around the sun and at the same time it spins on an imaginary line called an axis which runs from the North pole to the south pole.
Amount of heat energy radiated by unit surface of the sun in the same time workout as Take, R = mean distance of earth from the sun and r = radius of sun
Mohan traveled five cities (A, B, C, D and E) starting from home by a car which has a mileage such that the car can travel 10 km in 1 liter petrol. Distance between city A and B is twice the distance between home to city A. Distance between city B and C is thrice the distance between home to city A. Distance between city C and D is 100. Distance between city D and E is 1.5 times than the distance between B and C. Average distance traveled by Mohan was 41 km between five cities. Find how much petrol was needed by Mohan to travel from city B to D.
The question below consists of a set of labelled sentences in which first and the last sentence is given. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph. S1- Climatic changes have become more prominent now because of global warming which is a global concern. P- Such gases never let sun rays to go back to the atmosphere, however, trap heat from them.  Q- The release of various greenhouse gases in the atmosphere by many natural means and human activities causes an increase in atmospheric temperature because such gases have a capability to absorb all the heat of environment from the sun, burning coal, etc. R- Both are hot issues of the current time and it is the time to analyse causes and prevention methods to prevent global warming.  S- Fossil fuels burning release more carbon dioxide which is increasing day by day because of deforestation.  S6- Plants are the main source to utilize carbon dioxide as a food, however, we are disturbing the natural cycle by cutting more plants.
G = (V, E) is an undirected simple graph in which each edge has a distinct weight, and e is a particular edge of G. Which of the following statements about the minimum spanning trees (MSTs) of G is/are TRUE? I. If e is the lightest edge of some cycle in G, then every MST of G includes e II. If e is the heaviest edge of some cycle in G, then every MST of G excludes e