Earth's plates are constantly moving. What evidence do scientists use to support this claim?
a) earthquakes
b) volcanic activity
c) GPS measurements
Answer:
A) Earthquakes and B) volcanic activity
Explanation:
Scientists found that the surface of our planet is always in motion. ... The knowledge of the Earth's continual motion is based on the work of scientists who study the movement of the continents. This process is called “plate tectonics.” Earthquakes and volcanic activity are a result of that process.
Both a and b are correct! But if it just wants one I would go with earthquakes first!
Hope this helps ya!
The movement of crustal rocks has been studied by various scientists and researchers. Most of them have identified earthquake activity as the major cause.
Evidence was collected from the fossils, glacial movements, and coastal patterns. Shows how the plate might have drifted or moved from their past location. Fossils are a good example of this. As the plates are always in motion they produce earthquakes and volcanic eruptions on the surface. The movement of plates can also be tracked with satellites from above.Thus the option A and B are both correct. Primarily option A
Learn more about the earth plates are constantly moving and what evidence scientists use to support this.
brainly.in/question/31460885.
Why is it so difficult for scientist to determine how the Jalisco block is moving
Are Nuclear Power or Wind Power the Answer to our Energy/Electricity Needs? (answer clearly please)
Answer:
Nuclear is reliable.
Nuclear plants are the most efficient source of electricity, operating 24/7 at a more than 93 percent average capacity factor. ... That's more than two times the capacity factor of any other carbon-free source. During the 2019 polar vortex, U.S. plants operated at more than 98 percent capacity.
On the other hand, Wind is not as effective as some countries have little to no wind, especially the hot arab or african countries.
Some disadvantages are:
The wind is inconsistent.
Wind turbines involve high upfront capital investment.
Wind turbines have a visual impact.
May reduce the local bird population.
Wind turbines are prone to noise disturbances.
Installation can take up a significant portion of land.
Wind turbines can be a safety hazard.
Nuclear:
Expensive to Build. Despite being relatively inexpensive to operate, nuclear power plants are incredibly expensive to build—and the cost keeps rising.
Accidents.
Produces Radioactive Waste.
Impact on the Environment.
Security Threat.
Limited Fuel Supply.
However, both are at least better than fossil fuels as they are renewable.
Answer as soon as possible! :
Where do we get our energy from and in what proportions (ie % of electricity derived)?
Why is it so difficult for
scientists to determine how the Jalisco block is
moving
Answer:
Extensional faulting observed in southwestern Mexico has been related to the incipient rifting of the Jalisco block from the Mexican mainland since the Pliocene. On the basis of new structural and geophysical data, we propose that (1) the continental boundaries of the Jalisco block are ancient structures reactivated since the Pliocene at a low (<1 mm/yr) rate of deformation, and (2) Pliocene-Quaternary extensional faulting at the edges of Jalisco block is a basement-controlled intraplate deformation related to plate boundary forces rather than to active continental rifting. The Jalisco block boundaries first developed in response to the uplift of the Puerto Vallarta batholith in pre-Neogene time and underwent a complex contractile deformation before the Pliocene. During Pliocene-Quaternary times north-northeast extension reactivated the northern boundary, forming the Tepic-Zacoalco rift, whereas east-southeast extension formed the northern Colima rift. South of the Colima volcano, active extension is found only west of the so-called southern Colima rift and partly reactivates old northeast-trending basement faults. The parallelism between the subducted Rivera-Cocos plate boundary zone and the eastern neotectonic boundary of the Jalisco block supports eastsoutheastward motion of the southern Mexican blocks induced by the differential motion and oblique subduction of the Cocos and Rivera plates. On the other hand, we envisage Pliocene-Quaternary extension along the northern boundary as an upper-plate response to the low convergence rate and the steep subduction angle of the Rivera plate.