If the Atlantic sea floor is spreading at 3.0 cm/yr and is now 6400 km wide, how long ago were the continents in contact? How does that time span compare to the age of the Earth?

Q: Earth is made of two types of plates. The densest plates are [ Select] and the less dense plates are…

A: Earth is made up of two types of plates. they are 1) Oceanic Plates 2) Continental Plates

Q: How does Earth retain its atmosphere?

A:

Q: Two plates are diverging and both are moving at a rate of 3 centimeters per year. How long will it…

A: Each divergent plate is moving at a rate of 3 centimetres per year. u=3 cm/year   The distance,…

Q: What do you mean by the term local earthing? Explain how it is done?

A: local is also known as Grounding which is a system used to protect electrical wires and components…

Q: mic migration can be best described as a. Converting the seismic section from time to depth b.…

A: The process in which we relocate seismic events geographically in space or time to the location the…

Q: What percentage of Earth's volume is the metallic core?   Note: The volume of a sphere is  4 3πr3.…

A: Given: The radius of the earth is 6.38×103 km. The radius of the earth's core is 3.51×103 km.

Q: Plate Plate, Fil out the information for a Mid-Ocean Ridge. Boundary type: and Type of plate: How…

A: Oceanic crust is formed at a mid-ocean ridge, as we know.Since they occur when the oceanic crust and…

Q: Which of the following is the nearest lonospheric layer to the earth surface at night time?* D layer…

A: Answer is discussed below.

Q: The asthenosphere lies just below the core mantle lithosphere

A: Answer              lithosphere

Q: The Earth's mid-ocean ridges create about 1.029 cm of new crust over their 1943 km length every…

A: New crust created every year by mid ocean ridges (d) = 1.029 cm Using conversion factor : 1 km =…

Q: If a tectonic plate is moving at 8.4 cm per year and a string of volcanoes appearing in the middle…

A: Given data The speed of the tectonic plate is v = 8.4 cm/year The length of the volcano is given as…

Q: Earth's mass ia 6x10^24 kg and its radius is 6.4x10^6 m. What is the average mass density of Earth?…

A:

Q: A fossilized leaf contains​ 70% Of its normal amount of​ carbon- 14. How old is the​ fossil? Use…

A:

Q: The origin of Earth's magnetism is due to moving charges in Earth's? A. liquid inner core B.…

A: Mobility of liquid metal in the outer core of the planet generates electric currents. The rotation…

Q: Which soil horizon contributed to these dust clouds?

A: Explanation: Every year, the process of farming begins with preparing the soil to be seeded. But for…

Q: mantle convection, ridge push, slab pull; which one of these do scientists think is the most…

A: Answer:- mantle convection is one of these do scientists think is the most important in moving…

Q: Where are the newest parts of Earth’s crust located?

A: Required :  Where are the newest parts of Earth's crust located.

Q: Which of the following is most responsible for the formation of new crust at the edge of a tectonic…

A: According to the tectonic plate theory, the Earth's outer crust is separated into plates that can…

Q: Geophysicists today generally attribute the existence of the earth’s magnetic field to…   a.…

A:

Q: A rift valley is evidence of which kind of plate boundary? A. convergent B. divergent C. transform…

A:

Q: What is the significance of size of the planet and its atmostphere in supporting life? What two…

A: To determine: Significance of size of the planet and the two planets having the possibility in…

Q: Challenger Deep reaches 11 km (36,000 ft) below sea level. Which is greater, the elevation of Mt…

A: The elevation of mount Everest above sea level is nearly 8.8 km  and depth of challanger deep is 11…

Q: Ok so... if you drill a hole through the core if the earth maybe 10 feet wide (ignoring magma and…

A: The center of gravity of the earth is located at the center. So, when we go away from the earth we…

Q: What generates Earth's magnetic field? Why is the magnetic field important? What is a magnetic field…

A: “Since you have asked multiple question which are not linked with each other and you have asked to…

Q: Tectonic plates are large segments of the Earth's crust which move slowly. Suppose that one such…

A:

Q: T for F)-The plot shows that, on average, Earth's temperature has steadily increased over the past 3…

A: This plot shows the temperature has decreased over the pas 3 million years .

Q: Which of the following is the most related to plate tectonics activity?   a climate   b.…

A: Plate tectonics :- Earth's outer shell is divided into large slabs of solid rock, called "plates,"…

Q: What is extinction vortex and what happens in an extinction vortex?

A: Extinction vortex is a process which is used to describe the effect of declining of  population in…

Q: What is a ground fault interrupter and how it works?

A: A ground fault occurs when there is a break in the low resistance grounding path from a tool or…

Q: 4. Early life on Earth formed in h. late September 5. Cambrian explosion would occur in f. mid…

A: 6) The Triassic Period (252-201 million years ago) 7)around 300,000 years ago. on that time 8)The…

Q: What is the Moho? Describe the basic differences between continental crust and oceanic crust.

A: Generally, the Earth's crust is divided into older, thicker continental crust, and younger, denser…

Q: iven that the half-life of carbon-14 is 5,730 years. Consider a sample of fossilized wood that when…

A: Law of radioactive decay is N=N0e-λt where N is the amount left after passage of time t…

Q: The theory of plate tectonics states that Earth’s plates are always in motion. What geological…

A: What geological evidence supports plate tectonics theory.

Q: If the Atlantic seafloor is spreading at 2.9 cm/year and is now 6,350 km wide, how long ago (in…

A: Given data The speed of the seafloor spreading is given as v = 2.9 cm/year. The width of the…

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.