In terms of major greenhouse gases (GHG) that alter climate, which 4 of these do we directly emit? tropospheric O3 V N20 O stratospheric H2O CO2 V H2O O CECI3

Q: A rotation curve graphs   a. mass vs. luminosity.   b. period vs. luminosity.   c. tempe...

A: Firstly, let us discuss something about the rotation curve, Rotation Curve: A disc galaxy is a plot ...

Q: SOLAR ENERGY AND APPLICATIONS

A: Given date= 17 September Therefore, the  number of days since the start of the year= d= (31+28+31+30...

Q: Starlight passing through interstellar dust becomes   a. fainter and redder.   b. brighter a...

A: Option a will be right answer.

Q: A singularity is an object   a. with zero charge.   b. with zero magnetic fields.   c. w...

A: A singularity has a mass with infinite density. It means, its volume is zero.

Q: A planetary nebula is   a. the expelled outer envelope of a medium-mass star.   b. produced ...

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

Q: Identify the trenches in the philippines and identify the corresponding subducting oceanic crusts an...

A: There are many types of landforms underwater in seas and oceans similar to that on the land above th...

Q: Which stars produce energy using heavy-element fusion (the triple-alpha process)?   a. Low-mass ...

A: The triple-alpha process occurs in red giant stars at high temperature. Also, the process occurs, wh...

Q: Convection is important in stars because it   a. increases the temperature of the star.   b. ...

A: Convection or stellar convection consist of movement of plasma inside a star which forms the circula...

Q: Oceanic crust Continental crust Lithosphere Lithosphere Asthenosphere Oceanic-continental convergenc...

A: Earth is a terrestrial planet, meaning it has a rocky surface primarily made up of silicate rocks an...

Q: Observations from the Compton Gamma Ray Observatory showed that gamma-ray bursters were located thro...

A: The gamma ray bursters are associated with black holes and neutron stars. They generates when two ne...

Q: Distinguish among reliable science, unreliable science, and tentative science

A: Science is referred to the study of anything present in our Universe. Scientific study essentially i...

Q: 1. For each beach, sketch and explain how the shape of the beach will change through time: a. Indica...

A: The above diagram states a long show transport coming from the western side and moving towards the e...

Q: I read that there was a second earthquake near Sumatra on 28 March 2005. It measured 8.7—nearly the ...

A: The surface of the earth is divided into about a dozen large pieces, called tectonic plates that mov...

Q: How can very cold clouds make very hot stars?

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

Q: Which commodity is used most heavily in industrial economies: steel, plastic, or wood?

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

Q: The _____________________ are places in the orbital plan of a binary star system where a bit of matt...

A: In the case of the binary star system,the two stars orbit around a common centre of mass.  Almost 85...

Q: Explain why environmental education is important.

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

Q: Rift Valley.

A: The rift-valley is a depression in the shape of a line and is found near low lands that are several ...

Q: What would happen if the sun stopped generating energy?

A: The solar system is a gravitationally bound system around the sun. It has 8 planets, their moons, as...

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...

Q: ESTVE RGENT BON Rift Valley -> Plate Plate Mantle

A: The diagram given is of the formation of a rift valley. These valleys are long and linear and can ex...

Q: Label the microscope

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

Q: Define water scarcity and water stress.

A: Earth is a terrestrial planet. This means it has a rocky surface primarily made up of silicate rocks...

Q: Rift Valley Plate Plate Mo Fill in the information for Rift Valley. Boundary Type: and Type of Plate...

A: Plate tectonics theory notes that underneath the earth's lithosphere, slabs called plates float and ...

Q: What is a fossil? Is a footprint a fossil?

A: The study of earth science has a distinct branch of study where we study the fossils found preserved...

Q: If a ball of dough were to experience s1>s2=s3 what would be its appearance? (include in your gen...

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

Q: Name two types of careers that are important in natural disaster management and explain why they are...

A: Natural disasters are caused and regulated by nature itself. No external entity has capability to pr...

Q: 4. In Florida, limestone mining produces over 153 million tons of products a year, including concret...

A: Limestone is a sedimentary rock composed of calcium carbonate(CaCo3). This limestone is formed when ...

Q:

A: EIA is the abbreviation of the word Environment Impact assessment. This is supposed to be an authori...

Q: Why do mountains have roots?

A: The Earth's interior is divided into four layers- crust, mantle, outer core, and inner core. The den...

Q: What evidence is there that an asteroid struck Earth at the end of the Cretaceous Period?

A: An asteroid of relatively big size struck on the earth at the end of the Cretaceous period, which is...

Q: Describe smelting and some of its environmental effects

A: The extraction and processing of metals produce several gases in the environment. Some of these gase...

Q: Investigate hazardous and toxic wastes.

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

Q: What is the difference between open clusters and globular clusters?

A: Our universe consists of several planets, galaxies, meteorites, asteroids, dark energy, black holes,...

Q: Why is there so much rainfall at the intertropical convergence zone (ITCZ)?

A: A broad trough of low pressure in the equatorial region from 5° N to 5°S is known as the Inter-Tropi...

Q: Which of the following is NOT a characteristic of the stars of the disk component of our galaxy? ...

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

Q: Identify the fire class and the type of extinguisher appropriate for each fire situation. (a)Bonfire...

A: Fire class is a system which categorising fire, which is based on type of material and fuel used for...

Q: The nuclear bulge of our galaxy   a. contains stars that are primarily population I stars.   ...

A: The milky way galaxy is a spiral galaxy that has a nuclear or central bulge along with the nucleus, ...

Q: Roughly 99.9 percent of the energy flowing away from a pulsar is carried as   a. magnetic fields...

A: Pulsar is a magnetized rotating compact star which emits energy in form of electromagnetic radiation...

Q: In what ways does underground water weaken rocks, i.e., what internal roles does water play?

A: Ground water is part of the natural water cycle on the earth, as it seeps into the ground when rain ...

Q: Why does a star expand into a red giant?

A: A red giant is an iridescent goliath star of low or transitional mass in a late period of heavenly d...

Q: How do volcanoes regulate the planet’s atmosphere today?

A: Volcanoes are opening in an earth crust from which lava, gases and other volatiles erupt out to the ...

Q: Why does a star expand into a red giant?

A: A star is a celestial body present in abundant amounts and each star has its galaxy. Our galaxy is a...

Q: What kinds of plate boundaries exist?

A: Earth is a terrestrial planet. And the lithosphere is the outermost part of the Earth. It consists o...

Q: Visit Stone Mountain. What type of rock is Stone Mountain made up of? Stone Mountain is is a large e...

A: Rock and skeletal features describe an environment, classify its variations, and explain the way it ...

Q: Chart the evolutionary process of a medium-mass star like our sun on the H–R diagram from the zero-a...

A: The graphical tool used by the astronomers for the classification of stars according to color, spect...

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: What are the types of ocean waves, arranged by disturbing force and wavelength?

A: The waves that are formed on the surface of the oceans because winds are called ocean waves. These w...

Q: When ecologists warn that we are using up irreplaceable natural resources, and economists respond th...

A: The environment is composed of all living and non-living things. The term is often used to describe ...

Q: When the radio signal of a pulsar was first discovered, it was thought to be from   a. little gr...

A: The discovery of radio and radio signals enlighten modern science. These radio signals can travel a ...