You are watching a TV weather report and you hear that the barometric pressure is rising. You say to your friend, “Good. That means fair weather is on its way”. Why are you sure?

Q: Imagine you are looking at a major river that has 6-7 different major tributary systems coming off o...

A: Knick point is defined as the point at which the river experiences a sharp bend in a channel slope. ...

Q: How to make a scale drawing of the Earth?

A: The Earth is classified into three parts: the crust, the mantle, the core. CRUST: Being the outermos...

Q: From 2001 to 2009 Did the area of ​​the outlet glaciers that end in the sea constantly change in the...

A:   Outlet glaciers are usually found in valleys. They originate from ice sheets and ice caps and thei...

Q: 1. A geologist has found an unknown mineral. She finds that a sample of calcite will not scratch the...

A: The hardness of a mineral is identified by scratching it with other substance of known hardness, if ...

Q: Which of the following salts produce a BASIC solution when added to water? (only one)     ...

A: For a salt to be considered basic, the anion in the salt must be a conjugate base of a weak acid.  

Q: How many days is the Moon in the waxing phase and the waning phase?

A:   During the new moon, the moon’s illuminated side completely faces toward the sun, whereas the moon...

Q: A. What are tailings? B. Explain the potential environmental hazards associated with tailings piles ...

A: Any process or situation which can cause adverse effects to the environment is called environmental ...

Q: I need help with this geology homework

A:   The principle of original horizontality suggests that the sedimentary beds deposited in water are ...

Q: 1. How does velocity determine whether a given flow is laminar or turbulent? 2. How does the size of...

A: Depending upon the flow velocity, the roughness of the stream bed, and viscosity, fluids exhibit two...

Q: How magnetization is produced? Write down the sources of magnetism. What is remnant magnetization? W...

A: Earth's magnetism is produced by convection currents in the outer core involving molten iron and nic...

Q: An amateur horticulturalist breeds tulips in the hopes of obtaining a flower with unique and desirab...

A:   Continue to breed more tulips will increase genetic variations in tulips as the breeding of plants...

Q: Use Figure 1 for questions 1-5 1. How many minutes elapsed between the arrival of the first P wave a...

A:   A seismogram records the vibrations caused by an earthquake at a specific measuring station. It sh...

Q: 1. What environmental process can we conclude from the characteristics of rocks? ( referring to the ...

A:   When hot molten magma undergoes cooling and solidification deep inside the earth or on earth surfa...

Q: At what angle should a PV module at Colombo, Sri Lanka (Latitude +6.9) be tilted up from the horizon...

A: The efficiency of solar panels is related to the angle in which the photo-voltaic cells in the panel...

Q: Describe the physical features (natural landscape) of your country, such as mountain ranges, deserts...

A: Ireland is an island present in the North Atlantic Ocean. It lies on the continental shelf of the Eu...

Q: From outside the Earth-Moon system, how many times does the moon appear to rotate in one orbit? How ...

A: The moon rotates exactly once per orbital revolution because the rate at which the moon spins on its...

Q: How many minutes elapsed between the arrival of the first P wave and the last measurable surface wav...

A:   A seismogram records the vibrations caused by an earthquake at a specific measuring station. It sh...

Q: What effect might each of the following have on the Earth's climate?

A:   (a) CO2 (b) Particulate pollution (c) Aircraft in the stratosphere (a) The carbon dioxide theory ...

Q: Subject: Geology Please complete the table below. See the image attached.  I'm hoping that you can a...

A:   Rock Specific Gravity Unit Weight (kN/m3) Porosity (%) Ultrasonic Velocities (m/s) Ela...

Q: If a stream is flowing at 1 cm/sec, which size(s) of particles would be deposited?

A:   Based on the Hjulström-Sundborg diagram, if a stream is flowing at 1 cm/sec then the size(s) of pa...

Q: If a certain star is 4 times as hot as the sun and is 10000 times brighter than the sun, calculate t...

A: The luminosity (L) of a star is related to its temperature (T) and radius (R) as L = R2T4  To compar...

Q: fill the blank with the word 'cosmological redshift' or 'doppler shift'   A         ?         occurs...

A: A variation in the wavelength or frequency of a photon having non-zero radial velocity according to ...

Q: Meaning hydrosphere, atmosphere, geosphere etc.

A: There are four spheres that describe different systems of the planet Earth - hydrosphere (water), ge...

Q: Why is much of the world’s tropical forest biome located along the equator?

A: Equator is the region the warm temperature throughout the year. It receives maximum precipitation on...

Q: How would you reconcile the emerging needs of human beings regarding their health and the need to pr...

A: Biodiversity is formed from two words biological and diversity. It comprises all the varieties of li...

Q: Earth formed in a swirling disk of matter surrounding the sun. As particles in the disk collided and...

A:   Gravitational collapse and accretion of primordial gas and dust cloud gave birth to the Solar Syst...

Q: Why is it difficult to give exact dimensions for the Galaxy's visible halo?

A:   The galaxy in visible light is strongly affected by interstellar dust and gas in a way that it is ...

Q: Alkali metals reacting with water, what is the sign for AH"? O Negative O Zero O Positive

A:   The heat that passes into the system or out of the system during a reaction is the enthalpy change...

Q: What is erosion?          What is the main difference between physical and chemical weatheri...

A: In the earth, mainly two processes act. These are endogenic processes acting inside the earth and ex...

Q: Assume we are looking at a river/creek valley that contains ancient meanders. These ancient meanders...

A: The meandering of the river occurs in the old stage. In the meander, erosion occurs in the outer cur...

Q: The oldest rocks on Earth contain zircon crystals that are 4.4 billion years old. does this mean tha...

A:   In 2001, the oldest known zircon crystal was dated about 4.4 billion years old. This indicates tha...

Q: When propanol (C3H7OH) reacts with oxygen gas (elemental/molecular oxygen), the products are carbon ...

A: Enthalpy of formation (ΔHf) describes the amount of energy released or consumed when one mole of a s...

Q: Is Frost frozen dew? Explain

A: Dew forms when the air temperature becomes equal to the dewpoint temperature, which is when the air ...

Q: The clouds that surround Venus are so thick that the planet actually absorbs less sunlight than the ...

A:   The carbon dioxide in Venus's atmosphere along with thick clouds traps so much heat that Venus has...

Q: Symbiosis examples that the text specifies.

A: Various organisms depend on plants and animals for their survival. Plants and microorganisms, algae,...

Q: Why does magma (molten rock) rise to Earth’s surface from deep within the Earth?

A: Magmas form from partially melted rocks at depths below the surface in the lower crust and mantle wh...

Q: Biome table

A: A broad area comprises of specific soil, climate, flora and fauna. Two types of area of land compris...

Q: What major factor determines the future of the universe? Why?

A: The total amount of matter, or mean density contained within the universe is the major factor that d...

Q: In the empty picture, redraw the blocks in the water in order from the smallest density one to the l...

A: Blocks of different density float on water displacing an amount of water which is equal to their own...

Q: How has the biosphere influenced climate change in the recent past?

A: The biosphere involves the interaction of terrestrial ecosystems such as forests, grasslands, etc, a...

Q: Compared to the density of liquid water, the density of an ice cube is

A:   The liquid water density is 997 kg/m³ and the density of ice is about 900 kg/m3. Ice is comparativ...

Q: Realization in learning the history of the Earth? In 2 - 3 sentences.

A: The most important realization in learning earth's history comes from the fact our planet is a const...

Q: What is the elevation difference between Smith Park and Fuller Park, near the western edge of the ma...

A: On the map, first, identify the location of both parks. In the map above, the blue arrow represents...

Q: During summer in the Northern Hemisphere, the North Pole is illuminated by the Sun 24 hours per day....

A:   The North Polar Region receives sunlight at a low angle that results in sunlight spreading out ove...