The obsereved acceleration of the universe means that the amount of dark energy exceeds the total mass-energy of matter in the universe. Is this a true statement?

Q: How could Igneous rocks resource availability affect our lives?

A: Rocks and mineral resources are very important part of industrial society. Since it takes more years...

Q: 1. How does orogenesis or mountain-building occur? Why does this phenomenon occur only on continenta...

A: Orogenesis is the creation of mountains by the convergence of two tectonic plates. This term was int...

Q: State what types of risks may occur in the environment (air, water, soil), and what are the risks to...

A: In any region, pollution is the main risk, which occurs in air, water, and soil. All the three eleme...

Q: ) The removal of the Bald Eagle from the Endangered Species List best illustrates good  A) managemen...

A: Bald Eagle is is the type of sea eagle that is especially seen in North America.  The endangered spe...

Q: Earth's atmosphere is mostly transparent to incoming sunlight, but opaque to the infrared light radi...

A: The atmosphere covering the Earth is made up of gasses, water vapor, dust, and other colloidal parti...

Q: High concentration of anaerobic bacteria (biological water pollutants) are often caused by a decreas...

A: Biological contaminants include bacteria, viruses, animal dander, dust, insects, and even pollen. Th...

Q: 4.  Which of the following luminosity classes refers to stars on the main sequence?     I ...

A: There is a classification of stars based on their luminosity or spectral characteristics. This class...

Q: Six of the fossils indicated by the number 1 and one of the fossils indicated by the number 2 were f...

A: The fossil shown in figure one is ammonoid with ammonitic suture whose age ranges from Jurassic to C...

Q: After reading the STEMscopedia page found in your notebook on page 32, Drag and drop the labels to t...

A: The Earth's interior is not a homogeneous sphere, but it is made up of concentric layers of earth ma...

Q: Ocean acidification represents a major factor of the following cycles? A. Nitrogen cycle B. Phosphor...

A: Ocean acidification is the continuous decrease in the pH of the Earth's oceans, caused by the intake...

Q: Describe the density of Earth’s interior?

A: Density of Earth’s Interior The average density of earth is 5.514 g/cm3. But it is not uniform throu...

Q: Where would the soil be loose and May require compacting?

A: Soil Compaction Soil compaction is the process of densification of soil. It is done by applying pres...

Q: What is the relationship between the magnitude of a given disaster and its frequency of occurrence?

A: Magnitude is the amount of energy released and frequency is the interval of recurrence of the disast...

Q: Analyze these two photomicrographs of ice crystals (snowflakes) by William Bentley (Fig. A3.2.5). 1....

A: Ice is a solid form of water. It is stable below 0°C temperature. Two types of ice are crystalline a...

Q: Question-based on which are minerals.   It is not A, B, C, D, and E altogether.

A: A mineral is a naturally occurring homogenous, crystalline substance having some definite chemical c...

Q: Advantages and disadvantages of hydrogeology?

A: The word hydro means water, and geology means the study of the earth. Hydro-geology is the study of ...

Q: What is water soaking into the ground called? A. Evaporation B. Infiltration C. Precipitation D. Run...

A: Water gets percolated through the soil layers to get stored in aquifers or get stored in pores.

Q: Explain the vertical change in lithology of formations deposited on a continental shelf from} a. Lim...

A: Continental shelf is a low depth and nearly horizontal terrain that starts from the seaward from the...

Q: Describe how coastal runoff of lowsalinity water produces a coastal geostrophic current and give a s...

A: The coastal runoff of low-salinity develops a surface chock that dips away from the coastal line, th...

Q: A pollutant often found in road runoff is? A. Sewage B. Pesticides C. Oil  D. Industrial chemicals

A: A pollutant is any material, organic or inorganic that causes harm to humans, the environment, and l...

Q: What powers the hydrologic cycle? A. Earthquakes B. Gravity C. Internal heat D. Solar energy

A: Hydrologic cycle or water cycle is the continuous movement of water in different subsystems of the e...

Q: What would have to happen if oceanic crust was not destroyed at oceanic trenches, but new crust was ...

A: According to the theory of plate tectonics, the Earth comprises several lithospheric plates. The lit...

Q: Question-based on, "night sky and past" I don't understand it, any help would be appreciated.    1. ...

A: The Universe is made up of billions of galaxies that are in a constant state of relative motion. Fro...

Q: Carbon-14 decays into which element? Potassium Nitrogen Uranium Lead Helium

A: Carbon-14 is a radiocarbon, radioactive isotope of Carbon. The atomic nucleus contains 6 protons and...

Q: What is lithosphere? Describe rigid plate’s motion

A: The earth can be divided into four subsystems named as lithosphere, hydrosphere, atmosphere and bios...

Q: Summarize the major issues underlying international efforts to address climate change.

A: Climate is the synthesis of weather for a long enough period. There is evidence of fluctuations or v...

Q: Differentiate between the types of strain: elastic, ductile and brittle.

A: Any deformation in rock, while it is under stress, can be explained as strain. When stress is applyi...

Q: The pH of water is a measure of its? A. Saltiness B. Acidity C. Color D. Cloudiness

A: The pH, hydrogen ion concentration, defines the measure of the magnitude of acidity or alkalinity of...

Q: How many rotations is in one Mercury year?

A: Mercury is the closest and the smallest planet to the Sun in the solar system.

Q: What are minerals ?

A: Unit cells combine to form a crystal; crystals combine to form a mineral and minerals combine togeth...

Q: The Pacific ocean is shrinking because

A: The Pacific Ocean is the largest in the world. It reaches from America to Asia and Australia. A line...

Q: What is the Ocean Acidification Equation?

A: The sea and the ocean act as an important sink for carbon dioxide. The CO2 in the atmosphere is abso...

Q: Research ocean floor features in your textbook, in the library, on the Internet, or from your class ...

A: Note Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question ...

Q: Which of the following is true about geologic timescale? a. An establishment of the actual time in ...

A: Geological time scale is composed of standard stratigraphic divisions which are based on the stratig...

Q: Water purification, air purification, and the recycling of waste are examples of? A. Ecosystem servi...

A: Water Purification is the conversion of dirty water into clean and safe water. Water purification ge...

Q: - King Abdulaziz City for Science and Technology, Remote Sensing Section. 1- In two points, provide ...

A: Remote Sensing is the study of collecting data from an area without actually going to the site.  Rem...

Q: Reverse fault is one of the.. ..... Oblique-slip Magnitude-slip Strike-slip Dip-slip

A: If the hanging wall has eventually moved up related to the footwall is termed as a reverse fault  Th...

Q: If there is no compositional difference between two oceanic plates, what factor will determine which...

A: A tectonic plate is a massive irregular piece of landmass. Continental plates are lighter and older ...

Q: How has geoscience factors control evolution of life which in turn continuously alter Earth’s surfac...

A: The planet Earth was not livable from the beginning of time. It has evolved geologically with time, ...

Q: 7.  Which of the following characteristics of stars has the greatest range in values?     lumino...

A: Stars are astronomical bodies that have hydrogen and helium in its core. The star's luminosity, core...

Q: Q 3) In the given marked figure identify the crystal group and mention all the elements of crystallo...

A: A crystal is defined as a regular polyhedral form that is bounded by smooth surfaces. In a crystal, ...

Q: Discuss the following about geothermal energy  a. What is Geothermal energy? b. How does a geotherma...

A:  Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and ...

Q: How does the heat capacity, latent heat of fusion and latent heat of vaporization of water compare t...

A: Heat capacity is the amount of thermal energy taken by a substance to raise its temperature by one u...

Q: QUESTION #2: substantiality What are some challenges related to ‘Sustainable Development’? What is ...

A: Sustainable development of a particular resource is the process by which a resource is developed (ex...

Q: What happens to old oceanic crust as new molten material rises from the mantle?

A: The molten material found below the earth surface is termed as magma. The mobile plate is the plate ...

Q: Dr. John Snow discovered that a cholera outbreak was caused by drinking water polluted by? A. Pestic...

A: Dr. John Snow was an English physician who pioneered in the areas of anesthesia and medical hygiene....

Q: Seasons where days are shorter and that hemisphere is pointed away from the sun

A: Seasonal variation on the earth is due to it's tilted axis.

Q: 1. What are the three sources of heat of the Earth’s interior? 2. How does these sources of heat of ...

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question s...

Q: What factors might cause the chemical components of the soil in a particular area to change?

A: Chemical components are one of the most crucial property of soil.

Q: 1.How often do earthquakes of a certain magnitude occur? Cite one specific example. ________________...

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question s...