The Sun and stars are made almost entirely of hydrogen and helium, but we have measured radii of these stars out to their surfaces. What is the name of the layer of a star that we designate as the surface, what makes that layer unique, and how do we define that as a surface if it isn't made of hard rocky material like Earth?

Q: Where did the Pacific and North American Plates first come into contact? Select the one best answer.…

A: Solution

Q: What are the major differences in weather conditions along a cold and warm front? Explain the…

A:

Q: My question is which rocks that found in Wisconsin are are equivalent (formed during the Sam…

A: The geologic time scale was created after researchers noticed changes in the fossils going from most…

Q: five (5) positive and five (5) negative effects of v es. ions and related earthquakes can wipe out…

A: Positive effects:-  1:- Influencing the flow of underground water,oil and natural gas.  2:- Make…

Q: Which of the following is least likely to fossilize? a. snail in a swamp b. leaf in a butterfly…

A: The physical, chemical, as well as the biological processes that contribute to the preservation of…

Q: Pls help ASAP. Pls show all work.

A: The time it takes for the Moon to pivot once on its hub is equivalent to the time it takes for the…

Q: Pls help ASAP. Pls show all work.

A: A black hole is a region in space in which gravity pulls so that even light cannot escape. There is…

Q: 10. In which direction is the cold front moving in the map below low? The warm front? Warfn hopt.…

A: Fronts are common elements of weather in the midlatitudes (temperate area — 30° – 65° N and S). They…

Q: 2. In the map below, what two frontal systems are indicated? Give the name of the states impacted by…

A: The states of North Carolina has depicted this climate.

Q: Experiment 5 Cross sections Refer to the geological map supplied on the last page of this Lab. 1.…

A: A cross-section of a geological body represents important information. In a single section, there…

Q: What is the most important agent driving metamorphism? At what type of plate boundaries are you most…

A: The most important factor driving the metamorphism is the intense chemical and mechanical process…

Q: Summarize how the first, second, and third waves ofenvironmental policy in U.S. history differed…

A: During 17-eighteenth hundreds of years, the main period of natural guideline arose. Ecological…

Q: During typhoon ambo, PAGASA tracks the amount of accumulating rainfall. For the three hour of…

A: Given question is, during typhoon ambo, PAGASA tracks the amount of accumulating rainfall. For the…

Q: What factors control the shape, dimensions,and orientation of sand dunes?

A: Formation of a Dune: for a dune to form, a patch of sand must first begin to accumulate. This occurs…

Q: distinguish between unidirectional and cyclic changes andbetween gradual and catastrophic changes,…

A: a) Unidirectional changes refer to changes which continues mostly in the same single direction…

Q: explain what groundwater is, where it resides in the Earth, andhow its composition and flow varies.

A: Groundwater is the water that is inside the earth's surface. The rocks with cracks have a saturated…

Q: The sculptured shapes in the glacier below (marked with an A) are which can be used to determine…

A: The above diagram shows elongated oval-shaped hill-like structures that are deposited under the…

Q: . Explain the role of greenhouse gases in regulating climate.

A: Sun's radiation is one of the most critical of Earth's energy sources. Some gases can trap Sun's…

Q: explain how groundwater supplies can be damaged or depletedand how to address these problems.

A: Drinking polluted groundwater can be dangerous to one's health. Infection from septic tank waste can…

Q: Explain the role of science in policymaking

A: Science have a great role in policy making.

Q: What causes the tides? Why does tidal range vary?

A: Any cyclic deformation of one astronomical entity induced by gravitational forces applied by others…

Q: Modified True or False: Write 'TRUE' if the statement is correct, otherwise replace the underlined…

A: Below are the answered true and false.

Q: Although about 70% of earth’s surface is covered in water, about how much of that water is…

A: Earth's surface is covered with around 70% of water out of which 97% of water is present in seas and…

Q: Environment of Deposition of Mineral habit Globular and Granular

A: Given question is about the mineral habit globular and granular. There are different types of habits…

Q: 2. In the map below, what two frontal systems are indicated? Give the name of the states impacted by…

A: The two boundaries are marked by a fronts which is between two air masses.

Q: Waste and disposal method of a project "Drinking water refilling station"

A: The impact of plastic waste on the environment is well documented, and widely known.Despite ongoing…

Q: Pls help ASAP. Pls show all work.

A: The primary aim of NASA's discovery program is to discover planets around other stars from outside…

Q: Pls help ASAP. Pls show all work.

A: Solution

Q: What steps could government and industries take to protect our aquatic resources? Cite ways on how…

A: Aquatic resources are the resources which includes wetlands, streams , rivers, ponds, ground water…

Q: What evidence did Louis Agassiz offer to support the idea thatan ice age happened?

A: Agassiz' speculation speaks that a significant portion of the landmass of North America was covered…

Q: You are working for an international nongovernmentalorganization and have been charged with the task…

A: Given that, You are working for an international nongovernmental organization and have been charged…

Q: How will changes in air pressure and sea surface temperature associated with El Nino potentially…

A: solution

Q: One policy solution to maintaining species and biodiversity is to. O a) establish a more complete…

A: We will answer the first question since the exact one wasn't specified. Please submit a new question…

Q: List five (5) foreign and five (5) local Filipino scientists and their contributions to the…

A: Five foreign scientists who played an important role in the evolutions of environmental science…

Q: . describe how ocean depth, temperature, and salinity correlate.

A: Because the water in the bottom of the ocean comes from polar regions and lowers during the winter,…

Q: The following image shows how caves develop in a a. valley and ridge province. karst landscape. С.…

A: The study of different types of landscapes is important for understanding the past environment which…

Q: Direction: Use the word bank to fill in the blank spac paragraphs below Word Bank composite steep…

A: 1- VOLCANO 2- Earth's

Q: Pls help ASAP. Pls show all work.

A: Once our solar system was a massive dense cloud and from that massive dense cloud, materials are…

Q: . Discuss the different types of coastal wetlands. What is a coralreef, and how does the reef…

A: Given the question, Discuss the different types of coastal wetlands. What is a coral reef, and how…

Q: explain why the Earth has been able to change in many waysover its history.

A: The study of the earth is important because throughout the whole geological time period earth's…

Q: What is radiometric dating and how is it used to obtain geologic ages?

A: Radioactivity is a natural phenomenon whereby an unstable nuclei splits into stable nuclei to…

Q: What does this graph tell us about the change in CO2 contentsince 1960?

A: Carbon dioxide is not a major gas in our atmosphere. The structure of Carbon dioxide is one carbon…

Q: Pls help ASAP. Pls show all work.

A: Solution

Q: evaluate evidence that climate has changed during the past fewcenturies, and describe the causes and…

A: Given that, evaluate evidence that climate has changed during the past few centuries, and describe…

Q: 2. How does one mineral crystallizes alongside with other minerals? Is it possible to happen in any…

A: One should known that minerals crystalize from magma, when magma cool then crystalization of mineral…

Q: Why is rainwater harvesting important in sustainable farming practices? A) allows farms to add…

A: Rainwater harvesting is the act of collecting rainwater during and/or after rainfalls. When…

Q: describe how glacial ice forms and flows, and how to categorizevarious kinds of glaciers.

A: Glaciers are the moving sheet of ice. They are formed from the snow. When snow falls, they…

Q: Discuss the impact of green technology on the world.

A: The word Green technology itself gives the idea about its meaning: the use of technologies and…

Q: If you fly over central Illinois during the early spring, you will seeslight differences in soil…

A: The patterns represent a patterned ground, ice-wedge polygons, which are formed in the region of…

Q: What processes control the rise and fall of sea level on theEarth?

A: Transgression:  The movement of coastline toward land because of relative upward push in the sea…