Minerals from several closely related species make up a

Answers

Answer 1
Answer:

Answer: Group

Explanation:

A Group refers to the amalgamation of minerals from several closely related species. It is done for easier classification and is the third tier in Mineral classification with the first being the Variety of the Mineral, the second being the Species and the third being the Group.

An example of a group is Feldspar which is a group of tectosilicate minerals.


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True or false : secondary sources are never reliable

What is the underlying geologic explanation for why western South America is so different from eastern South America?

Answers

The western South America is so different from eastern South America because the eastern side of South America is once a part of Africa during the geologic past. Certain features of Africa are actually evident to the east side of America as observed. I hope my answer has come to your help. God bless and have a nice day ahead!

To determine the nature of the differences between northern and southern Arizona, geologists could: map the geology in detail, take seismic profiles, study drill core, and reconstruct the geologic history between each province.True

False

Answers

Answer:

True

Explanation:

The fourth methods outlined in the paragraph are useful to determine the nature of the differences between the geology of northern and southern Arizona.

This is because these geology differences can manifest in seismic profiles, in geologic history (for example, the differences in the rock formations that form the soil of the two regions), in drill core studies, and also, in a detailed map of the geology of the state, where ideally, the results from the previous studies would be mapped.

Which of the air pollutants has been the most difficult to reduce?

Answers

Answer:

Ozone

Explanation:

Ozone is a secondary photochemical contaminant, that is, it is formed from primary pollutants emitted into the atmosphere (mainly nitrogen oxides and volatile organic compounds) in the presence of solar radiation.

The photochemical formation of ozone in a given region is the result of a complex chemical process in which, from its precursors (nitrogen oxides and volatile organic compounds), a multiplicity of different species intervene, interacting with each other according to different reactions, resulting in a highly nonlinear final balance. A transcendental consequence of this nonlinear chemistry is that in a given region, and depending on the initial conditions of departure, the action on the different precursors can have very variable consequences, it being possible that it leads both to an increase and a decrease of ozone concentrations.

This makes short-term measures to reduce air pollution in a certain area, of a restrictive type (such as limiting the operation of heat generators, restricting the circulation of vehicles, regulating traffic to make it more fluid, restricting certain industries and activities) they are not as effective with ozone as with other types of pollutants, as they are a secondary type pollutant and may even in some cases produce a counterproductive effect: for example a drastic reduction in traffic, causing a decrease in NOx levels in the atmosphere, can prevent the decrease of ozone levels that had previously formed.

In the fight against ozone it is necessary to apply medium and long-term measures aimed at limiting emissions of ozone precursor pollutants into the atmosphere.

They do not serve short term strategies. Medium-long term strategies for the reduction of ozone precursors must be devised:

- Less polluting vehicles (NOx, VOCs)

- Use of public transport (NOx, VOCs)

- Energy saving (NOx)

- Use of non-polluting energies (NOx)

- Reduction of solvent use (VOCs).

What causes the seasons? Explain. Be as precise and accurate as possible.

Answers

Answer:

Rotation of the earth on its axis.

Explanation:

  • The earth is tilted at 23.5 degrees relative to its ecliptic plane and rotates in an anticlockwise direction around the sun this causes the winds in the earth to move from left to right in the northern hemisphere and in right to left in southern hemisphere knowns the Coriolis effect.
  • The impact of sun rays creates a system n the earth's landscape that makes the earth produce temperature inversions and relative earth has three pressure cells that move in a cyclic order from the equator to the poles.
  • It is also due to the angle of inclination around the sun that the earth experience cold and warm weather in summers as a result of the tilt the sun rays fall directly 90 degrees on the equator and are inclined toward the poles at the angle of 30 degrees.  
  • Also, the presence of upper air jet streams and geostrophic winds influence the temperature ranges o the earth they bing in the warm and cold air masses from the other regions and equator being a region of mixing diverts all of these winds hence creating a good balance.

1. PART A: Which TWO of the following statements should beincluded in an objective summary of the article?
A The distance between a satellite and the object it is
orbiting varies due to the shape of the orbit.
B The use of man-made satellites to take pictures of Earth
from space presents a privacy concerns to all humans.
C The Earth's consistent and circular orbit around the sun
keeps the length of Earth days regular.
OD Man-made satellites pose a serious threat to the
environment that natural objects in space do not
O E A satellite is in orbit as long as it is making a recurring
elliptical path around another object.
OF The shapes of the paths that satellites take around an
object allow them to stay in motion.

Answers

Answer:

(C)

not sure with my answer

About how many hours of daylight does Swiftater, Pa. have on September 23rd?

Answers

Answer:

About 12 hours of daylight

Explanation: