Answer: Periodic maintenance refers to activities performed on equipment based on a set time interval. The purpose of periodic maintenance, or time based maintenance, is to maintain smooth operation of a machine or other asset.
SSS theorem or side-side-side triangle congruent theorem state that each side of one triangle must be congruent to the opposite side of another triangle. It means they same measurements. So, when triangle DEF is congruent to triangle D'E'F by SSS theorem, the only transformation that can be done is the measurements of one side of D'E'F is move to other sides as well as the next two sides, but it would have remained that all sides are having the same length to each side of DEF.
The statement that is true is underground water is still important in shaping landforms although underground water has little effect in erosion. Therefore, the correct option is option b.
<h3>What is underground water?</h3>
Underground water, or simply known as groundwater, is the water that is present beneath the Earth's surface in the fractures of rock formations and in rock and soil pore spaces. About thirty percent of all readily available freshwater in the world is underground water. When a unit of rock or an unconsolidated deposit can yield a usable quantity of water, it is called an aquifer.
Underground water is recharged from the surface; Naturally it may discharge from the surface at seeps and springs, and it can form oases or wetlands.
Learn more about underground water here: brainly.com/question/9617
#SPJ4
Oceanic lithosphere is the main material being subducted at an ocean-continent convergent boundary.
- There are two types of lithosphere: oceanic lithosphere and continental lithosphere.
- Oceanic lithosphere is associated with oceanic crust, and is slightly denser than continental lithosphere. Plate Tectonics. The most well-known feature associated with Earth's lithosphere is tectonic activity.
- At an ocean-continent convergent boundary, the denser oceanic plate is pushed under the less dense continental plate in the same manner as at an ocean-ocean boundary. Subduction of the Juan de Fuca Plate under North America created the Cascade Range.
- Oceanic crust may collide with a continent. The oceanic plate is denser, so it undergoes subduction. This means that the oceanic plate sinks beneath the continent. This occurs at an ocean trench . Subduction zones are where subduction takes place.
to know more about oceanic crust click here
brainly.com/question/5637320
#SPJ4
Answer:
1) uranus
2) venus
3) mercury
4) mars
5) jupiter
6) it doesn't say which planet, but that's only true for earth
7) neptune
8) saturn
Explanation:
uranus axis is tilted more than 90° from the solar sistem plane, it's unknow why this is, but a collission is suspected
even though mercury is closer to the sun venus is hotter in average beacause mercury lacks an atmosphere to retain the heat
mars moons are called phobos an deimos, the only other rocky planet to have a moon is earth since pluto is no longer considered a planet
saturn's density is so low that it would theoretically float if thrown in a pool of water of the appropiate size