The source of comets is   a. the Kuiper belt.   b. the asteroid belt.   c. the Oort cloud.   d. both a and c.

Q: The process when particles grow by adding matter one atom or molecule at a time from the surrounding...

A: Atom are the smallest unit of all the matter (Solid gas liquid and plasma) present in the Universe ,...

Q: 41) Imagine that a geologist sees two outcrops of resistant sandstone, as depicted in the cross sect...

A: The structure will be an asymmetric syncline. 

Q: If the radial velocity of a galaxy is measured to be 1,500 km/s, how far away is it?

A: The current value of Hubble's constant is  73.9 km/sec/Mpc. The distance of a galaxy can be found ou...

Q: The current atmosphere of Earth is believed to be   a. the remnants of the original gas from the...

A: Atmosphere is a layer air that consist of various element in gaseous state. It contains all the oxyg...

Q: The Jovian problem refers to   a. the high speed with which the Jovian planets rotate on their a...

A: Firstly, let us discuss something about Jovian Planet, Jovian Planet: Jupiter, Saturn, Uranus, and ...

Q: Gravitational lensing is used to detect   a. galaxies.   b. planetary nebulae.   c. glob...

A: A gravitational lens can take place when a large amount of matter such as a cluster of galaxies crea...

Q: What is the most likely plake for this rock to have formed? V [ Select ] On a lava dome in a large c...

A: Rock is aggregate of mineral, sediment and other rock particle which is solid naturally occurring sh...

Q: Any theory used to explain the formation of the solar system must account for which of the following...

A: I think option e will be the correct answer.

Q: Name Atmospheric Global Warming lifetime Global Warming Potential Global Warming Potential Potential...

A: Greenhouse gases are those gases that absorb the global heat of the earth's heat budget. The greenho...

Q: Barred spiral galaxies make up what portion of all spiral galaxies?   a. one-tenth   b. one-...

A: Barred spiral galaxies account about two-thirds of all spiral galaxies.

Q: A streak of light seen in the nighttime sky, visible only for a moment, best describes which of the ...

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

Q: WS 4) Please answer the three question in the photo below as they each have the same optional answer...

A:   At the location, A is an ocean-continent convergent boundary.  At the location, B is a divergent p...

Q: We can shrink ecological footprints while creating our benificial environment impacts

A: Everything that surrounds us makes an environment. The environment of different areas may vary but c...

Q: During the first and third quarter moon phases, there isn’t much difference between the ocean level ...

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

Q: There is no clear distinction between a very large grain and a very small planetesimal, but you can ...

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

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: The attached image is a crater in Arizona. How did it form? What are the evidences to support this c...

A: Firstly, let us discuss something about what is a crater? The crater is a large bowl-shaped cavity f...

Q: Fill in the table with the needed information about the global climatic phenomena.

A: Climate is the average weather pattern of a region. It is the average of almost 30 years of weather ...

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: Which of the following are the 5 components of a sustainable agricultural system: A. Sometimes d...

A: India a country that is agriculture dominant nation that means in India agriculture is the most wide...

Q: An extrasolar planet is   a. a planet that orbits the sun that we have not yet discovered.   ...

A: Planets are astronomical object which orbit a star like sun, such planets are massive enough to be r...

Q: Rivers and stream ecosystems are described to be one of the highly productive in biodiversity. Compa...

A: An ecosystem is one of the highest hierarchy levels in the ecological succession of the biosphere of...

Q: (Wildland Fires) Fire suppression has significantly changed the landscape. Today, 95% of areas burne...

A: Fire suppression is the marked cutback in the rate of a fire's development and prevention of its reg...

Q: Which is NOT a good distance indicator for galaxies?   a. globular clusters   b. type Ia sup...

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

Q: Which of the following is evidence that Earth differentiated?   a. It rotates slowly.   b. I...

A: The average density of the Earth is 5.5g/cm3 which is calculated using the total mass of the Earth a...

Q: MULTIPLE CHOICE 1. In the thermosphere, as height increases, temperature _____ A. Decreases B. Inc...

A: The atmosphere is distributed into layers or zones based on temperature. These layers are named as t...

Q: What is the relationship between mass, volume, and density?

A: Volume of an object or matter is a 3-dimensional quantity and is the space occupied or contained by ...

Q: Which is NOT a good distance indicator for galaxies?   a. planetary nebulae   b. type Ia sup...

A: Red dwarfs are the coolest and smallest stars on the main sequence. They are small, low surface temp...

Q: Which of the following objects is most like the planetesimals that formed in the solar nebula?   ...

A: Solar nebula is the gas and dust cloud from which the solar system is thought to be formed according...

Q: The Hubble law compares what two variables?   a. distance and size   b. apparent velocity of...

A: In Hubble law, the velocity of galaxy is directly proportional to the distance from the origin. 

Q: Determine WHEN did Sandy Hook begin growing out into New York Harbor?  In other words, how many year...

A: Sandy Hook is located in the state of New Jersey, United States. It's a barrier spit that just attac...

Q: 34) Tsunamis are caused by __________. A) Wind traveling over the surface of the ocean B) The ro...

A: Firstly, let us discuss something about Tsunamis, Tsunamis: giant waves of water

Q: _________________________ is an irregular galaxy that is believed to have collided with the Milky Wa...

A: Andromeda Galaxy is a barred spiral galaxy, not an irregular galaxy.  The Small Magellanic Cloud is ...

Q: The terrestrial planets have all of the following characteristics EXCEPT   a. low average densit...

A: Planets are astronomical object which orbit a star like sun, such planets are massive enough to be r...

Q: Rapid fluctuations of quasars show the objects must be very   a. big.   b. bright.   c. ...

A: Quasars are luminous galactic object which have very high luminous nucleus, in which a supermassive ...

Q: ii) The arrow on each of the following diagrams indicates the changes in pressure and temperature co...

A: Metamorphism is alteration of rock this change in rock occur mostly due to pressure and temperature ...

Q: 22) Please answer the question in the photo

A: The sangay volcano is located at east of the Andean crest and is the southernmost volcano in Ecuador...

Q: 46) Please answer both questions in the photo as they both have the same set of answer choices

A: A petroleum reservoir is a reserve of oil & gas, present majorly in sedimentary rock formations....

Q: The environment is a whole being that is available on the planet earth. It composes of various eleme...

A: The ecosystem is a system that contributes to several living organisms that are interrelated to each...

Q: Which type of rock is rich in minerals (Igneous, Sedimentary, Metamorphic)?  Explain.

A: Earth is the third planet in the solar system and it is a terrestrial planet. It has a solid, rocky ...

Q: What is the similarity between active galaxies, stellar black holes, and protostars?

A: Active galaxies:- These type of galaxies release quite that releases a high amount of energy in the ...

Q: The Jovian problem is that   a. the Jovian planets in the solar system are closer to the sun tha...

A: Option c will be the correct answer.

Q: What are the fundamental techniques to balance the natural environment? Briefly explain your answer?

A: The environment that comprises all the living and non-living components of nature is called the natu...

Q: How old is the earth

A: In 1898, Marie Curie discovered a state of radioactivity, in which unstable atoms lost energy, or de...

Q: Of the following characteristics, the one that is associated with the Jovian planets and NOT with th...

A: Option b i.e. ring systems will be the correct answer.

Q: 1. How can we Reduce the Effects of Climate Change? ( As a student)

A: Climate change constitutes both global warming made by man-made emanations of greenhouse gases and c...

Q: Explain how to find distances to distant galaxies using the Hubble law?

A: Edwin Hubble was the first one to observe the galaxies to be moving away from us in 1929. He measure...

Q: Describe the current water treatment in Maryland and explain how it can be improved to cater for th...

A: Maryland: A state located in the Mid-Atlantic region in the southeast of the United States, on the b...

Q: d. Trinidad Island is bisectea by the Central Fault Range Zone, if the length of this fault is 435 k...

A: The earth’s lithosphere of which crust is a part is divided into several tectonic plates. These plat...

Q: Low-density and cold dust disks have been found around many stars. These disks are believed to be re...

A: Proto planetary disks known as low density and cold dust disks. They have young stars in the centre....