Choose all the answers that apply. The continents _____. were once connected have always been in the same location are slowly drifting have stopped moving are made mostly of basalt
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Answer: the correct options are
- were once connected
- are slowly drifting
Explanation: The continent is the main land mass of the earth which includes the following:
- Asia, Africa, Europe, Australia, North America, South America, and Antarctica.
These continents were once connected forming a supercontinent called PANGAEA
during the late palaeozoic and early mesozoic eras, millions of years ago.
Alfred Wegener, who is a German meteorologist, in 1912 came up with a hypothesis that the continents are slowly drifting the earth. He called the movement continental drift.
The continents rest on massive slabs of rock called tectonic plates. The plates are always moving and interacting in a process called plate tectonics. In recent studies, through the science of plate tectonics, we where able to understand the mechanism through which continental drift occurs. The mechanism includes:
- processes of seafloor spreading,
- rift valley formation, and
- subduction (where heavier tectonic plates sink beneath lighter ones).
Answer:
Were once connected, and Are slowly drifting
Explanation:
It's called the continental drift, At first, Wegener's theory was dismissed. No one believed that the continents moved. During the 1920s, another scientist named Arthur Holmes suggested that the magma in the earth's mantle moved through convection currents. As hot magma rose toward the crust, it cooled and then sank back down. The cycle continued over and over, causing motion that was powerful enough to move the continents. Like Wegener's theory, Holmes' idea was not accepted by the scientific community. Forty years later, geologists compared mineral and fossil samples from Africa to those in South America. The samples matched perfectly. Today, the theory of continental drift is supported by a large amount of data and evidence. The continents as a whole was once called Pangaea.
Related Questions
The device which disconnects the start winding in some split-phase motor circuits after a preset speed is obtained is thea. thermostat. b. commutator. c. brush spring. d. relay.
Suppose you had a feather, an orange, and a watermelon. Which of the following describes how quickly each of the objects will fall without air resistance, relative to the other two?a. All three objects will fall at the same rate. b. The watermelon will fall faster than the other two. c. The orange will fall the fastest, followed by the watermelon and then the feather. d. The feather will fall faster than the orange, which will fall faster than the watermelon.
Nuclear power plants require large volumes of _____ to cool reactors and convert heat to electricity.air water salt uranium
you apply the same amount of heat to five grams of water and five grams of aluminum the temperature of the aluminum increases more than the temp of the water what can you conculde
Answers
Answer:
Battery is the source of electrical energy which will help the charge to flow through a medium.
Battery is a constant source of potential difference which will create constant potential difference across the ends of a conductor where it is connected.
When a charge is passed through the constant potential difference then the change in electrostatic potential energy will give kinetic energy to the charge.
It is given as
so here charge will continuously flow through the conductor across which potential difference is applied by the battery. This constant motion or flow of charge is known as electric current.
A.
Reverse the way the wire is connected to the poles of the battery.
B.
Use an electrical meter to test the voltage of the battery.
C.
Shorten the length of wire between the battery and the switch.
D.
Change the wiring scheme to parallel.
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Nothing has to turn.
Sunlight IS solar energy !
Answers
Answer:
Therefore, when the radius of a sphere is increased by 25%, the surface area increases by approximately 56.25%.
Explanation:
The surface area of a sphere is given by the formula: Surface Area = 4πr^2 where r is the radius of the sphere.
To find the percentage increase in surface area when the radius is increased by 25%, we can follow these steps:
1. Let's assume the initial radius of the sphere is r.
2. If the radius is increased by 25%, the new radius will be 1.25r (since 25% is equivalent to multiplying by 1.25).
3. Now, we can calculate the initial surface area (A1) using the formula: A1 = 4πr^2. 4.
Similarly, we can calculate the new surface area (A2) using the formula: A2 = 4π(1.25r)^2 = 4π(1.5625r^2) = 6.25πr^2.
5. The percentage increase in surface area can be calculated as follows: Percentage Increase = ((A2 - A1) / A1) * 100
6. Plugging in the values we obtained earlier,
we have: Percentage Increase = ((6.25πr^2 - 4πr^2) / 4πr^2) * 100 = ((2.25πr^2) / 4πr^2) * 100 = 56.25%
number of protons, number of electrons
number of neutrons, number of protons
Mass number, number of protons.
Atomic number and Mass number
2.U-232
U-235
U-236
U-238
These nuclei all have a different number of
Question 2 options:
Electrons
Neutrons
Protons
Nucli
Identify the number of neutrons in one atom of sulfur with an isotopic mass number of 34 amu.
Question 3 options:
16
18
32
34
3.Identify the number of neutrons in one atom of sulfur with an isotopic mass number of 34 amu.
Question 3 options:
16
18
32
34
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You'll need to know at least the dimensions of the whole ship, and
the coefficient of friction between air and whatever material the bag
is made of. I don't think the total mass is going to be too important.