Observations from the Compton Gamma Ray Observatory showed that gamma-ray bursters were located throughout the sky. This told us that   a. the bursts were not produced among stars in our galaxy.   b. neutron stars are very common.   c. the bursts are not associated with neutron stars or black holes.   d. gamma rays are easily produced by very cold material.   e. the bursts are associated with the big bang.

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

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: Give example for the blanks

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A: Sedimentary rocks formed by the accumulation or deposition of mineral or organic particles called as...

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A: The Earth is made up of four spheres known as lithosphere, atmosphere, hydrosphere, and biosphere. A...

Q: A food web is shown in the diagram. Hawk Frog Field mouse Rabbit Cricket Grass Which statement best ...

A: The above mentioned question displays the concept in environmental science that is the food chain. T...

Q: Genetic classification uses ____________________ to identify and study different types of rock.

A:  Genetic classification uses the texture and composition of a rock to classify it.

Q: explain why warm air will rise and cold air will sink. - please break it down.

A: Firstly, let us discuss something about  and cold, Warm: moderate or high degree of heat Cold: low o...

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

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A: Tsunamis are the secondary impact of the earthquake, giant sea waves are generated and that cause da...

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A: Ozone is a compound made up of three oxygen atoms that is naturally present in the atmosphere. Altho...

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A: A volcano is a feature of the earth's crust where molten rock is released from the earth's surface. ...

Q: Estuaries are classified by their origins. What types of estuaries exist?

A: An estuary is a mostly encased waterway shaped where new water from land meets and blends in with sa...

Q: What is Secondary succession in a forest ?

A: Secondary Succession is a type of succession in which the flora and fauna of an area colonize the ar...

Q: ____________________ rock forms from the crystallization of a melt.

A: The rocks those that are formed by the process of crystal development and the removal or separation ...

Q: Investigate hazardous and toxic wastes.

A: Wastes are unwanted substances that have been discarded after their primary use. Every year almost 2...

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A: The Earth comprises various kinds of materials. Each of these materials has different physical prope...

Q: you find small fragments of what might be bone. What criteria can you use to distinguish fossil bone...

A: A Fossil is preserved dead remains of pre-existing living organisms or traces of those organisms. Fo...

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Q: Why is the carbon dioxide level a concern for the long term future?

A: The unusual rise of carbon dioxide pose a threat to the planet in several ways. some of which includ...

Q: In which of the three basic kinds of rock do nearly all fossils occur? Why?

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A: A star is an extra-terrestrial astronomical body that radiates its own energy due to the nuclear rea...

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Q: Word Definition weather climate

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

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A: Volume of a matter or substance is quantity in a three-dimensional space which is close by some surf...

Q: What causes glacial advances and retreats during an Ice Age?

A: A glacial period is a time interval marked by colder temperature and glacial advances. It lasts for ...

Q: Define the challenge of sustainability.

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

Q: Please answer the question in the photo

A: Earth science is the study of the Earth and the various processes that are going on in the Earth sys...

Q: The density of a neutron star is   a. about the same as that of a white dwarf.   b. about th...

A: The neutron star is collapsed core of a large supergiant star it has a mass between 10 to 25 solar m...

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A: According to the plate tectonics theory, the surface of the Earth is made up of various hard lithosp...

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: Identify ways in which landscape preservation is morevaluable than ecosystem preservation.

A: The landscape has amazing beauty, with its mountains, plains, trees, seas, and rivers. It gives each...

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A: (A) Impacts of Hurricanes on Land It affects natural environment in coastal environment It damages ...

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A: The rotation of the atmosphere is longitudinal and lateral air movements, forming cycles of various ...

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A: This diagram shows the water cycle. it is the most common form of water cycle. the letters denote th...

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: Water Pollution: Indicate which statements are true and which are false The BOD of a system is a mea...

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Q: What are the important health and safety rules at surface mines ? Please write down the rules one by...

A:  Mine Safety is a concept that aims to the safety of every mine worker. It is the practice of mitiga...