what elements exist in seawater?

Q: Is the average density of the terrestrial planets greater or less than the density of Earth’s crust?

A: Density of a material is defined as its mass per unit volume of the material. The dimension of the p...

Q: Where do you think is most of Earth’s freshwater located? And why?

A: The Earth's water is distributed among saltwater and freshwater sources. Earth's water moves through...

Q: After lake water flows through a dam, which processes are most responsible for helping replace the w...

A: A body of water surrounding land is known as a lake. Lakes are charged artificially as well as natur...

Q: The picture below shows the Andes mountains range in South America. Which statement below describes ...

A: Contraction of crust occurs at the 'Subduction Zones,' where two tectonic plates converge, and the h...

Q: Nowadays, most houses are tiled using different kinds of rocks.If you will have your own dream house...

A: Nowadays, majority of the houses are tiled floor by using various types of rocks. The two types of r...

Q: 2. Explain the different processes that occur along the oceanic-oceanic divergent plate boundary.

A: Divergent plate boundaries are tectonic plate boundaries in which tectonic plates are moving away fr...

Q: - The Canadian Space Agency. 1- In two points, provide an explanation of how Earth Scientists can pa...

A: The Canadian Space Agency is the Space Program of Canada, which was established in 1957 due to the c...

Q: Why is seafloor spreading important?

A: In 1974, John Tuzo Wilson introduced continental rifting and drifting fueled by Mantle convection, l...

Q: Identify the different parts of the ocean floor.

A: The landforms beneath the ocean surface is very complex . Various landforms are found on the sea bed...

Q: Question 3 Which of the following events are secondary effects of an earthquake? Select all that app...

A: An earthquake is the sudden vibration of the earth's surface by the rapid release of energy. This en...

Q: The instrument measures the temperature, air pressure, wind speed and direction of a particular weat...

A: Temperature, air pressure, wind speed and direction are one of the major parameters of a particular ...

Q: What keeps the Moon from falling directly to Earth? O A. The Moon has a large tangential velocity th...

A: Moon is the natural satellite of the Earth. The only natural satellite formed about 4.6 billion year...

Q: Does a full moon set at noon, sunset, midnight or sunrise?

A: A full moon is opposite the Sun's orbit around Earth. Its sunlit side is entirely visible from Earth...

Q: Question-based on the iron of earth   I have tried it but unable to get right.

A: Earth The earth consists of three layers, the crust, mantle and the core. The crust is the hard, bri...

Q: A spacecraft is orbiting the Sun and makes a maneuver to slow down at aphelion.  Then, in the new or...

A: For an orbiting object around any central body, its angular momentum remains constant throughout its...

Q: A sandstone is exposed on the west slope of mountain. The sandstone strike 40 North and dips 46W, th...

A: The current question utilizes the concept of structural geology; the subject deals with the study of...

Q: Which of these examples is a water-conservation technique that also reduces water pollution? A. Fact...

A: The pollution of water has increased so much that it requires treatments and alternatives for the po...

Q: What is the rate of water flow in a river channel? A. Discharge B. Laminar flow C. Settling velocity...

A: A river channel is a water body flowing on the Earth's surface.

Q: 6.  A 3rd magnitude star appears 2.5 times brighter than a 4th magnitude star.     False    ...

A: The magnitude of a star is a unitless measurement of the star's brightness. Various stars in the uni...

Q: Starting with the mid-ocean ridge, explain that the formation and destruction of the seafloor is a c...

A: Based on the physical properties of the material, the interior of the Earth can be divided into the ...

Q: Wich direction are nearly all galaxies moving

A: A galaxy is a system of stars, held together by gravity. Everything in the Universe is moving, no ex...

Q: What are some U.S. units that are used to measure each of the following? A. length B. volume C. Weig...

A: Measurement system refers to the relation between a set of rules and the collection of measuring uni...

Q: Research a convergent plate boundary that you have not already read about here. Identify and describ...

A: Plate Tectonic Processes Plate tectonic processes are geological, which involves plate interactions,...

Q: How animals fly from one continent to an other due to weather how they did not miss their destinati...

A: Normally, several species of birds follow regular pattern of north - south migration due to change i...

Q: 5. Draw a diagram of the Earth orbiting the sun and use the following words to describe/enhance the ...

A: The following figure shows the earth in its orbit.      

Q: Answer please.

A: A ternary diagram, also called as a triangular plot, is defined as a plot containing three component...

Q: 3. Large earthquakes with center near coastlines can generate tsunami waves which travel at speeds o...

A: Tsunamis are massive waves/ waves hundreds of feet high that cause extensive damage to coastal resou...

Q: Suppose you had a friend who did not believe global warming was really happening now. Explain the th...

A: The emissions majorly from the factories and vehicles have resulted in an increase in greenhouse gas...

Q: Why is Pluto a dwarf planet?

A: Pluto is a celestial body called as the dwarf planet present in the Kuiper belt. Previously it was k...

Q: What relationship exists between a planet’s size and its density?

A: The density of any material is defined by the mass per unit volume of the material. Bigger the dimen...

Q: To refute Milankovitch's theory, modern scientists might best demonstrate that the periods of the ic...

A: Milankovitch cycle is the cyclic movement of the earth related to it's orbit around the Earth.

Q: In the conglomerate below, in the marked pebbles Devonian, Carboniferous and Jurassic fossils have b...

A: A conglomerate is a sedimentary rock formed by the consolidation of Gravel size particles along with...

Q: Why is convergent plate boundaries destructive?

A: Convergent boundaries are boundaries in which two or more tectonic plates move toward each other. Th...

Q: What is an effluent stream and influent stream? Discuss ways of water conservation in domestic, indu...

A: Streams are features of the landscape that transport water and sediment. Sources of water for stream...

Q: Suppose the relative humidity of air was 96% on a cold morning when the temperature was 20 degree Ce...

A: Relative humidity is the ratio of the actual vapor pressure to the maximum possible vapor pressure o...

Q: . According to the passage, El Nino occurs= failed trade with conclusion that can be drawn is that r...

A: El nino is a powerful air-sea interaction phenomenon which causes variation in the global climate. D...

Q: Would the mineral quartz scratch a diamond, Why or why not?

A: Minerals are naturally occurring solid chemical compounds with a well defined chemical structure. Qu...

Q: The most earthquake-related deaths are associated with which of the following? tsunamis liquefaction...

A: Earthquakes, which are natural hazards related to the Earth's violent shaking, claim many lives and ...

Q: A student uses a graphic organizer to show the characteristics of an object in our solar system. Whi...

A: In the universe, there are several astronomical bodies like planets, stars, asteroids, and comets. T...

Q: Analyze the statement carefully. Tell whether the following concepts hold true on weathering, its ty...

A: The salt crystal growth weathering is a type of geomorphic process where the physical disintegration...

Q: What is the biggest source impairment In great miami water quality?

A: Miami is a metropolis city which is located in south-eastern Florida in the United States. Miami is ...

Q: 23.  A star with a parallax angle of "0.968" acrsecond would be _______ distance away. Calculate the...

A: The parallax angle is the angle between earth and a distant star measured twice, at an interval of s...

Q: One of the advantages of solar generation over the use of fossil fuels is that solar power  A) can ...

A: Solar energy is the most abundant renewable source of energy.  In solar power, solar energy is conve...

Q: The right ascension and declination of the seven stars of the Big Dipper are given in the image. For...

A: We see numerous stars in the night sky. Some are constellations, while some are part of the constell...

Q: Name a structural feature formed at divergent plate boundaries and at convergent plate boundaries

A: Tectonism is an important geological process that shapes up the Earth's surface and landforms. The l...

Q: Create a life cycle of the pet bottle products. and what is its phase in life cycle?

A: Plastics are non-biodegradable products formed from hydrocarbon polymers. These create major problem...

Q: The four letters on the diagram below shows four different positions of the moon in relation to Eart...

A: Tides Tides occur due to gravitational pull of sun and moon on earth. In question, it is given that ...

Q: Stars of spectral class M do not show strong lines of hydrogen in their spectrabecause. . .(a) they ...

A: Stars of Spectral class M are commonly known as red giants. These stars are much smaller than our su...

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: If the original sample of radioactive potassium-40 was 80.0 grams, then how many grams of potassium-...

A: Half-life is defined as the time taken for a radioactive isotope decays to half its original amount....