Proxima Centauri is the closest star to Earth other than the Sun and it has an exoplanet in orbit around it. Its distance is about 4 ½ light-years from Earth, a light-year being about 6 trillion miles. Voyager, the fastest spacecraft we have ever launched, is traveling through space as a velocity of about 40,000 miles per hour. How long will Voyager take to reach this star and planet? Based on your answer, discuss whether space travel at this speed is an efficient way for humans to search for life on distant planets.

Q: An object has been located orbiting the sun at a distance from the sun of 65 AU. What is the approxi...

A: Orbital Period- orbital period of an object is defined as the time taken by a celestial body to comp...

Q: Explain how plate tectonics cause tsumanis

A: Firstly, let's what is plate tectonics? Plate Tectonic is a scientific theory which states that the ...

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A: RSP or rocky shore paradigm occurs when a species dominates when space is limited, the species here ...

Q: fertilization?

A: Fertilization is the process of fusion of the haploid gametes of the egg and sperm to form a diploid...

Q: Summer begins in the northern hemisphere on the summer solstice, which occurs when the   a. sun ...

A: In our Solar System, the Sun is situated at the center. The Solar System consists of eight planets t...

Q: Use the diagrams below to answer the following questions. 1. Contrast the plate movements that cause...

A: 1. In case of B, the blocks of rock is compressed, causing shortening of grains of the rock. The blo...

Q: II. DIRECTIONS: Match the type of volcanic eruption with the descriptions of magma. Write the letter...

A: Magma can be explained as hot, molten material beneath the earth's surface; terminology changes to l...

Q: Kepler’s second law implies that   a. a planet should move at its greatest speed when it is clos...

A: Johannes Kepler published 3 laws of planetary motion in 1609. the orbit of planet around the sun is ...

Q: The two great circles, the ecliptic and the celestial equator, do NOT coincide but are tilted with r...

A: The celestial equator is great circle of imaginary celestial sphere on same plane as equator of eart...

Q: Water moves through different rock layers at different rates. Order the following rock layers from s...

A: the porosity is the ratio of total pore spaces or voids in a total volume of rock. some rocks contai...

Q: help

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A: Tides is the rise and fall of sea level or wave due to extra-terrestrial forces like moon and the su...

Q: Imagine you were provided with three plastic cups labelled X, Y & Z and two U-shaped objects lab...

A: Temperature is a quantity which is used to express how hot or cold a thing or matter is. It is also ...

Q: The following map shows the water table elevation above sea level. Houses A, B, and C as well as the...

A: It is a general property that water flows in the steepest slope direction. In contours, the steepest...

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A: There are two models or theories that were utilized to explain the earth's position with respect to ...

Q: 62.Bivalves have the advantage over brachiopods in that they have tougher , more robust shells . T F

A: Bivalves are also known as pelecypods belongs to the phylum Mollusca. They have two equal values den...

Q: 6. The big island of Hawaii consists of 5 overlapping volcanoes that formed..a. at a mid-ocean ridge...

A: Hawaii is located on the northern side of the Pacific Ocean. The most prominent islands in Hawaii, n...

Q: Tall me about earth science

A: The earth science as a field of knowledge which relates to other fields of study that relate to the ...

Q: Asteroids are cosmic snowballs of frozen gases , rock and dust that orbit the Sun. Select one : Tr...

A: Asteroids are small, rocky objects orbiting the Sun. These are also known as minor planets. These ar...

Q: 8. At a mid-ocean ridge, magma forms...a. when seawater sinks through the lithosphere and lowers the...

A: The principles of lithospheric plates divide into oceanic and continental varieties. Maritime crust ...

Q: Use the diagram below to answer the questions that follow. 1. Identify the three plates in the diagr...

A: 1. A and B both are oceanic crusts while C is continental crust. A and B are made up of basaltic lav...

Q: Tycho’s universe was the same as the Copernican universe EXCEPT that   a. Earth did not move. ...

A: Firstly, let us discuss what is Tycho’s universe and what is Copernican universe? Tycho’s universe: ...

Q: Disaster Natural or Man-Made

A: Disaster is a disorder or disturbance that occurs for a short or long period of time and leads to wi...

Q: 15. Biotite...a. is a mica mineralb. is a ferromagnesium mineralc. would probably form before pyroxe...

A: Biotite is a group of black mica minerals that generally occur in igneous and metamorphic rocks. It ...

Q: 1.Explain smog formation. 2. Explain fog formation.

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Q: The book “De Revolutionibus Orbium Coelestium”   a. describes how Galileo’s observations and Kep...

A: The book was written by astronomer Copernicus and published in 1543. Copernicus, in the book, propos...

Q: As observed from Earth, the planets   a. speed up, slow down, stop, and move backward with respe...

A: When we observe the planets from the earth , The sun moon and all planets moves along the elliptic. ...

Q: A sharp increases in the number of species in a relatively short period of time . Select one : Tru...

A: Due to climate change the number of species may sharply decrease in relatively short period of time ...

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Q: Which of the following statements is true about shale regarding pore space and permeability?   A...

A: The shale is fine groaned sedimentary rock that is made from mud and also consists of tiny clay mine...

Q: 1.What are the main uses of geological sciences and their applications?

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Q: I need just the name of terms. You should just match the given words with the definitions and nothin...

A: Astronomy is study of anything that is beyond the Earth's atmosphere. This includes both the objects...

Q: When estimating the age of rock, why should geologists collect a fresh sample inside a rock rather t...

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Q: 2. What are the main earth divisions (layers) explain briefly?

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Q: How will you differentiate natural from man-made disasters?

A: Disaster refers to a sudden catastrophe incident that causes environmental, social, material, and ec...

Q: Of the following objects, which is the one that could appear to move in retrograde?   a. the moo...

A: A retrograde motion is apparent motion of planet in which the motion of planet is changed to directi...

Q: help

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Q: Nautilus is a coiled cephalopod . It is unusual because most nautiloids were straight cones . Selec...

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Q: Clastic grains that are greater than 2 mm are referred to as gravels—divided into granules (2–4 mm),...

A: Minerals are naturally occurring substances that have a specific chemical composition and a fixed ph...

Q: Which two ions are associated with acidic soil conditions? (choose both that apply) A13+ Ca2+ Na+ H+

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Q: How do you compare climate on land and climate near the sea ?

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Q: Acme Industries has written a proposal to develop a new factory near your home. The industry will re...

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Q: Why do you think some locations that are distant from bodies of water have extremeclimate?

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Q: Numerate the geophysical exploration methods with explain the physical property that depend on it ea...

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Q: Use the diagram below to answer the questions that follow A. Which type of plate boundary occurs at ...

A: The interior of Earth can be differentiated into four layers- crust, mantle, outer core, and inner c...

Q: In the following table, which star is brightest in apparent magnitude? Star Spectral Type mv ...

A: Apparent magnitude of a star is the number used to measure the brightness of a star from the Earth. ...

Q: what is a satellite

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Q: 14. Feldspar minerals...a. include the minerals muscovite and biotiteb. are subdivided into the plag...

A: Feldspars are the group of rock-forming minerals that belong to the tektosilicates of silicate miner...

Q: Give sustainable suggestions as to people could demonstrate the virtues of prudence and frugality to...

A: The environment encompasses all the living and non-living organisms in an area. This term is often a...