The correct answer is - d. colder and denser.
The main differences between the surface currents and deeper currents are the temperature and density, and that actually decides their position in the water, on the surface, or deeper.
The surface currents are warmer, and because they are warmer the molecules are much more loose, so the density is lower, which in return makes it easier, thus it is in the surface.
The deeper currents are colder, and because they are colder the molecules are much closer and more concentrated, so the density is higher, which means that they are heavier, thus fall deeper below the easier currents.
Answer:
Demographers study the growth and decline of human populations, and urban planners plan for the futures of cities (e.g. electricity, water, and transportation needs). Demographers and urban planners would benefit from working together to help solve difficult problems in society and to help plan for the future. A demographer would be very helpful to urban planners as they plan for the future of a city. For example, an urban planner would want to have an idea of the population growth in the city, or of the average growth rate in other cities, when planning for the city's future transportation, water, and electricity needs. Demographers and urban planners are important to each other! They help each other plan for the future of society
Explanation:
Answer:
Climate change threatens coastal areas, which are already stressed by human activity, pollution, invasive species, and storms. Sea level rise could erode and inundate coastal ecosystems and eliminate wetlands. Warmer and more acidic oceans are likely to disrupt coastal and marine ecosystems.
Seismologists are interested in the possibility of the two faults being connected together is because two faults tells the possibility of upcoming of natural disasters like earthquake.
Seismic waves are the elastic waves that propagate in solid or fluid materials. They can be divided into the body waves that travel through the interior of the materials; the surface waves that travel along surfaces or interfaces between materials; and the normal modes, a form of standing wave.
There are the two types of body waves, pressure waves or primary waves (P-waves) and the shear or secondary waves (S-waves). P-waves are longitudinal waves that involves compression and expansion in the direction that wave is moving and are always the first waves to appear on the seismogram as they are the fastest moving waves through solids
To know more about seismic waves, visit here:
brainly.com/question/13062627
#SPJ4
