List the Earth’s 4 spheres and give 1 example from your Environment for 2 of the speres.

Answer:

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Earth's Spheres

Everything in Earth's system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called “spheres.” Specifically, they are the lithosphere (land), hydrosphere (water), biosphere (living things), and atmosphere (air). Each of these four spheres can be further divided into sub-spheres. To keep things simple in this course, there will be no distinction among the sub-spheres of any of the four major spheres.

Lithosphere - Land

The lithosphere contains all of the cold, hard solid land of the planet's crust (surface), the semi-solid land underneath the crust, and the liquid land near the center of the planet.* The surface of the lithosphere is very uneven (see image on right). There are high mountain ranges like the Rockies and Andes (shown in red), huge plains or flat areas like those in Texas, Iowa, and Brazil (shown in green), and deep valleys along the ocean floor (shown in blue).

The solid, semi-solid, and liquid land of the lithosphere form layers that are physically and chemically different. If someone were to cut through Earth to its center, these layers would be revealed like the layers of an onion (see right image above). The outermost layer of the lithosphere consists of loose soil rich in nutrients, oxygen, and silicon. Beneath that layer lies a very thin, solid crust of oxygen and silicon. Next is a thick, semi-solid mantle of oxygen, silicon, iron, and magnesium. Below that is a liquid outer core of nickel and iron. At the center of Earth is a solid inner core of nickel and iron.

* Note: The word "lithosphere" can take on different meanings depending on the speaker and the audience. For example, many geologists--scientists who study the geologic formations of Earth--reserve the word "lithosphere" to mean only the cold, hard surface of Earth, not the entire inside of the planet. For the purpose of this course, however, there will be no distinction among the various layers of land. The word "lithosphere" will be used in reference to all land in Earth's system.

Hydrosphere - Water

The hydrosphere contains all the solid, liquid, and gaseous water of the planet.** It ranges from 10 to 20 kilometers in thickness. The hydrosphere extends from Earth's surface downward several kilometers into the lithosphere and upward about 12 kilometers into the atmosphere.

A small portion of the water in the hydrosphere is fresh (non-salty). This water flows as precipitation from the atmosphere down to Earth's surface, as rivers and streams along Earth's surface, and as groundwater beneath Earth's surface. Most of Earth's fresh water, however, is frozen.

Ninety-seven percent of Earth's water is salty. The salty water collects in deep valleys along Earth's surface. These large collections of salty water are referred to as oceans. The image above depicts the different temperatures one would find on oceans' surfaces. Water near the poles is very cold (shown in dark purple), while water near the equator is very warm (shown in light blue). The differences in temperature cause water to change physical states. Extremely low temperatures like those found at the poles cause water to freeze into a solid such as a polar icecap, a glacier, or an iceberg. Extremely high temperatures like those found at the equator cause water to evaporate into a gas.

** Note: Some scientists place frozen water--glaciers, icecaps, and icebergs--in its own sphere called the "cryosphere." For the purpose of this course, however, frozen water will be included as part of the hydrosphere. The word "hydrosphere" will be used in reference to all water in Earth's system.

Biosphere - Living Things

The biosphere contains all the planet's living things. This sphere includes all of the microorganisms, plants, and animals of Earth.***

Within the biosphere, living things form ecological communities based on the physical surroundings of an area. These communities are referred to as biomes. Deserts, grasslands, and tropical rainforests are three of the many types of biomes that exist within the biosphere.

A mixture IS a pure substance
(True or false)

Which substance do biochemists often search for in fossils to help better understand the evolutionary relationships of the organism that formed the fossil?

A.
DNA

B.
iron

C.
ATP

D.
oxygen

what is organic farming?

Which of the following most likely has the greatest
thermal energy?
A. water going over a waterfall
B. water in a lake
C. water from a hot water tap
O D. water vapor

Helppppppppppppppppp

Consider the sphere. A sphere. A is the great circle, B is the diameter, c is the radius, and d is the center. Identify the parts of a sphere. a is the b is the c is the d is the

8. A student looks at the dihybrid cross shown above and comes to the
conclusion that it is not possible for a tall pea plant with purple flowers to
be produced in this cross. Is the student correct?

which one is the lowest ,middle and highest between these magnification
10X
30X
40X​

Which compound would most likely be found in all living organisms?
cellulose
ethanol
insulin
water

A wasp lays eggs on an orb-weaving spider to...
a) force it to protect the wasp and it's larva.
b) make it provide a home and meal for it's larva.
c) use it to carry it's larva Long distance.
d) make it create a cocoon for the larva. ​

What is Chargoffs Rule?

A T and C G = ________ %

‍♀️ please help this is confusing

Which part of the respiratory system that branches off of the trachea carrying oxygen farther into the lungs?
-lobs
-alveoli
-bronchioles
-bronchi

Gymnosperm ovules are fertilized twice, called double fertilization.



Group of answer choices

True

False

Analyze the Punnett square below and determine the the genotypic ratio. Axial flowers are dominant

the Sting of bees contains which acid ​

How are traits inherited by offsring?

HURRRRRRRRYYYYYYY!!!!!

Which statement BEST describes the relationship between photosynthesis and cellular respiration?

A
Both processes release energy in the form of heat.

B
Both processes use energy to form molecules of glucose.

C
The products of one process are the reactants in the other process.

D
The products of one process are the same products in the other process.

it Due today please help​

Scientists follow seismic waves to locate the epicenter.
Please select the best answer from the choices provided
T
F

I DONT UNDERSTAND PLEASE HELP ME OUT

8. How are most seeds dispersed to a barren landscape?

When does energy transfer from air to the land?

look at the picture also i dont know what this is so I just put biology ​

Exponential growth happens when a population grows at a decreasing rate.
O True
O False

10. Three observers made the diagrams above to show what they think the Moon looks like when it is
seen from above (top view), In these diagrams, the sunlight is coming from the left, as shown by the
arrows. Which diagram is accurate and why?

write short note on adaptations​

where on the map is Africa

ILL GIVE BRAINLIEST (RIGHT ANSWER ONLY)
Students in Ms. King's science class are researching the history of the cell theory and will write a blog to show what they have learned. Which of the following is the best choice for the introductory sentence?


A. A scientific theory, like cell theory, does not change.


B. A hypothesis, such as one about cells, usually becomes a theory.


C. Scientific theories, like those written about cells, are not as important as scientific laws.


D. Scientific theories, such as cell theory, are based on well-supported observations of nature.

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