Which of the following offers evidence that supports the theory that quasars are the nuclei of very distant galaxies?   a. their spiral shape   b. having high apparent redshifts   c. having orbiting globular clusters   d. all of the above   e. none of the above

Q: What species was the main restoration focus on Nonsuch Island in Bermuda?

A: Ecological restoration is a process in which activities like reforestation, removal of non-native sp...

Q: What percentage of the universe is not visible matter?

A: The universe is all the time and space that includes all the galaxies, stars, planets, and all forms...

Q: What was the first evidence that quasars were different from any objects observed before they were d...

A: Ever since the beginning of the Universe, matter and energy were created. These matters and energy e...

Q: The absence of certain lichens is used as an indicator of air pollution in remote areas such as nati...

A: Lichens are compound plants as green growth and organisms live respectively in close relationship, b...

Q: In a typical spiral galaxy, stars in the   a. disk have highly elliptical orbits.   b. halo ...

A: There are different materials bodies and patterns seen in the universe. One of which include the spi...

Q: If you replaced our sun with a one-solar-mass black hole, Earth would   a. be sucked into the bl...

A: A black hole is a locale of space time where due to strong gravity that light cannot escape. The hyp...

Q: If a stellar remnant is in between 0.08 and 0.4 solar masses, the resulting object will be a   a....

A: A star undergoes various evolution in its lifetime. On approaching the limit of this stellar evoluti...

Q: Visit the Cumberland Plateau. What rocks make up this region? How old are they and what depositional...

A: The Cumberland Plateau is a part of the Appalachian Plateau due to the presence of mountain breaks, ...

Q: An X-ray image of the Antennae Galaxy (the result of a collision of two galaxies), shows clouds of v...

A: The collision of galaxies causes massive clouds of H gas to collect and compress, creating a series ...

Q: The Coma cluster   a. is the galactic cluster that contains the Milky Way.   b. is the oldes...

A: The galactic cluster that contains the Milky Way is the Virgo supercluster.  Coma cluster is not the...

Q: What would happent to the moon if it lost inertia?

A: The objects present in space have inertia along with gravity. Inertia in the objects of space contri...

Q: What is the greenhouse effect? *       a. Certain gases in the atmosphere trap heat...

A: The atmosphere on and around the earth is made up of a variety of gases that are present in specific...

Q: As a star exhausts hydrogen in its core, it   a. becomes hotter and more luminous.   b. beco...

A: The universe is all the time and space that includes all the galaxies, stars, planets, and all forms...

Q: The Algol paradox is explained by considering   a. the degenerate nature of the hydrogen on the ...

A: In astronomy , the Algol paradox is an incomprehensible circumstance when components of a double sta...

Q: please answer question 4

A: The atmosphere is a mixture of different gases that blanket the earth from outer space. The atmosphe...

Q: What pieces of evidence have been used in support of Plate Tectonic Theory?     The shape of c...

A: Plate tectonics theory describe the motion of tectonic plates.it state that the tectonic plates or t...

Q: The increasing price of oil triggered by the ship incident in Suez Canal has caused the problem in g...

A: Natural resources are materials that come from the Earth and are used to support life and meet human...

Q: 1. elevation of the two index contours 2. Elevation of the "spot" 3. What is the contour interval 4....

A: Contour- The contours are imaginary lines joining places lying at the same height above the mean sea...

Q: If you see a star cluster that only has red stars, what does that tell us about its age?

A: Stars are those parts of our universe that are at the center of galaxies. Sun is the center of our s...

Q: please answer

A:   The atmosphere of a planet, such as Earth's, is made up of several layers of gas molecules. The tr...

Q: Why did we write that there is one world ocean? What about the Pacific and Atlantic oceans, the “Sev...

A: The world at the time of formation composed of a supercontinent named Pangea which was-surrounded by...

Q: What are the differences between rich galaxy clusters and poor galaxy clusters?

A: Galaxy- A galaxy is a gravitationally bounded system of astronomical bodies A galaxy is a huge syste...

Q: Explain how ozone is: a. Produce. b. Destroyed in the atmosphere.

A: Ozone is a molecule composed of three oxygen atoms that exists naturally in the atmosphere. Majority...

Q: Planetary nebulae are   a. the expanding shells of a dying star.   b. the site of planet for...

A: Planetary nebula by the word can be understood as a universal concept related to planets but that is...

Q: True or False 1. To bring about a fusion reaction, the reacting nuclei must be brought very close to...

A: Nuclear fusion is a response where at least two nuclear cores are consolidated to shape at least one...

Q: Give an example of evolutionary convergence.

A: Earth is the third planet in the solar system. It formed almost 4.5 billion years ago. It is the onl...

Q: Is there a reliable way to standardize the measurement of wave size or surface conditions at sea?

A: Waves are the result of wind actions that affect the ocean surface resulting in the wave actions. Wa...

Q: What are the effects of El Niño and La Niña? List down at least 3 each.

A: Firstly, let us discuss something about  El Niño and La Niña: La Nina is a coupled ocean-atmosphere ...

Q: What is the height (in kilometers) and temperature (in degrees Celsius) of the following? a. Tropopa...

A: The atmosphere is comprised of several layers or strata’s where there are different characteristics ...

Q: What could be causingmore of the El Niño state than the La Niña state?

A: Climate is the long-term average of weather pattern. It is an average of weather pattern of almost 3...

Q: What spectral classes of stars work best as spiral tracers?   a. K and M   b. A and F   c...

A: The universe is all the time and space that includes all the galaxies, stars, planets, and all forms...

Q: The time in years equal to the distance to the galaxy in light-years is called   a. the time-dis...

A: The time in years equal to the distance to the galaxy in light-years is not termed the time-distance...

Q: Measured masses of galaxies amount to _______________________ mass than you can see.   a. roughl...

A: Measured masses of galaxies amount to the same amount of mass as you can see. There is no difference...

Q: In 1970 the deer population of an island forest reserve about 518 square kilometers in size was abou...

A: The population is defined as a distinct group of individuals. It can signify the people of a nation ...

Q: Georgia Physiographic Provinces is divided into four distinct regions with differing landforms and g...

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any ...

Q: Why does our relatively small Moon have a greater tidal effect on Earth than the gigantic Sun?

A: Tides are long-period waves that move through ocean and water bodies. They occur due to the gravitat...

Q: How will the sun end its life?   a. as a red dwarf   b. as a white dwarf   c. as a nova ...

A: Stars are astronomical objects with a luminous spheroid of plasma that is held together by the actio...

Q: As the ancestors of plants moved from water to land, they faced new problems and new advantages in t...

A: Earth is the third planet in the solar system. It formed almost 4.5 billion years ago. It is the onl...

Q: Boundary type: and Type of plates: How it's formed:

A: The given diagram is of the oceanic continental convergence. There is a clear divide between the oce...

Q: What were the greatest objections to Wegener’s hypothesis?

A: Earth is the third planet in the solar system. It has a rocky surface primarily made up of silicate ...

Q: Poor clusters   a. contain more than 1,000 stars and are found in the halo of the galaxy.   b...

A: This vast universe is divided into many units, so we have dust, gas, stars and planets form a galaxy...

Q: Are there enough resources in the world for 8 or 10 billion people to live decent, secure, happy liv...

A: Any material that constitutes to be a part of the earth that is valued by the people and is needed b...

Q: Using the figure below, which soil profile is more developed? Why? Ah BI Bw

A: Since you have asked multiple questions only first one will be answered. If you need an answer for a...

Q: What is the difference between rich and poor galaxy clusters?

A: Firstly, let us discuss something about Galaxy, Galaxy: A gravitationally bound system of stars, ste...

Q: Classify the following hazards according to their types. Write your answer in the corresponding colu...

A: A hazard is any agent that can cause harm to humans and the environment. Risk is the possibility of ...

Q: Which method is NOT used for determining the mass of a galaxy?   a. rotation curve method   b...

A: The rotation curve method is the method for determining the mass of the galaxy. The Cepheid variable...

Q: Explain what solar wind is and how its related to the formation of Aurora Borealis. Draw a diagram t...

A: A natural electrical phenomenon portrayed by the presence of decorations of rosy or greenish light i...

Q: VI.In 2 (two) sentences, describe the rainy and dry seasons in the Philippines.

A: Season is a period or time of a year which are characterised by a special climatic condition, there ...

Q: Astronomers can see instances where galaxies moving through the intergalactic medium leave behind ...

A: Active galactic nuclei or AGN are galaxies with very bright nuclei where the central luminosity can ...

Q: Fill in the information below for Folded Mountains. Plate Boundary: and Types of Plates: How they're...

A: Tectonic plates are piece of earth crust and upper mantle which together are called as lithosphere. ...