1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Reptile [31]
2 years ago
12

Which two fit?

Biology
1 answer:
Kobotan [32]2 years ago
7 0

Answer:

Explanation:

There are a few types of atoms that can be a part of a plant one day, an animal the next day, and then travel downstream as a part of a river’s water the following day. These atoms can be a part of both living things like plants and animals, as well as non-living things like water, air, and even rocks. The same atoms are recycled over and over in different parts of the Earth. This type of cycle of atoms between living and non-living things is known as a biogeochemical cycle.

All of the atoms that are building blocks of living things are a part of biogeochemical cycles. The most common of these are the carbon and nitrogen cycles.

Tiny atoms of carbon and nitrogen are able to move around the planet through these cycles. For example, an atom of carbon is absorbed from the air into the ocean water where it is used by little floating plankton doing photosynthesis to get the nutrition they need. There is the possibility that this little carbon atom becomes part of the plankton’s skeleton, or a part of the skeleton of the larger animal that eats it, and then part of a sedimentary rock when the living things die and only bones are left behind. Carbon that is a part of rocks and fossil fuels like oil, coal, and natural gas may be held away from the rest of the carbon cycle for a long time. These long-term storage places are called “sinks”. When fossil fuels are burned, carbon that had been underground is sent into the air as carbon dioxide, a greenhouse gas.

Recently, people have been causing these biogeochemical cycles to change. When we cut down forests, make more factories, and drive more cars that burn fossil fuels, the way that carbon and nitrogen move around the Earth changes. These changes add more greenhouse gases in our atmosphere and this causes climate change.

Carbon cycleThe Carbon Cycle

The element carbon is a part of seawater, the atmosphere, rocks such as limestone and coal, soils, as well as all living things. On our dynamic planet, carbon is able to move from one of these realms to another as a part of the carbon cycle.

Carbon moves from the atmosphere to plants. In the atmosphere, carbon is attached to oxygen in a gas called carbon dioxide (CO2). Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth.

Carbon moves from plants to animals. Through food chains, the carbon that is in plants moves to the animals that eat them. Animals that eat other animals get the carbon from their food too.

Carbon moves from plants and animals to soils. When plants and animals die, their bodies, wood and leaves decays bringing the carbon into the ground. Some is buried and will become fossil fuels in millions and millions of years.

Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration.

Carbon moves from fossil fuels to the atmosphere when fuels are burned. When humans burn fossil fuels to power factories, power plants, cars and trucks, most of the carbon quickly enters the atmosphere as carbon dioxide gas. Each year, five and a half billion tons of carbon is released by burning fossil fuels. Of this massive amount, 3.3 billion tons stays in the atmosphere. Most of the remainder becomes dissolved in seawater.

Carbon moves from the atmosphere to the oceans. The oceans, and other bodies of water, absorb some carbon from the atmosphere. The carbon is dissolved into the water.

Carbon dioxide is a greenhouse gas and traps heat in the atmosphere. Without it and other greenhouse gases, Earth would be a frozen world. But since the start of the Industrial Revolution about 150 years ago humans have burned so much fuel and released so much carbon dioxide into the air that global climate has risen over one degree Fahrenheit. The atmosphere has not held this much carbon for at least 420,000 years according to data from ice cores. The recent increase in amounts of greenhouse gases such as carbon dioxide is having a significant impact on the warming of our planet.

You might be interested in
What happens when light energy excites electrons in photosystem II?
Vlada [557]

Answer:

C. Electrons are released into the electron transport system.

Explanation:

Photosynthesis has both light dependent processes and light-independent processes. In the light-dependent reactions, photosystem II is the first protein complex. Photosystem II is present in the thylakoid membrane of plants.

<em>When the photons or light energy hits photosystem II, the free electron excites and released into the electron transport system (series of proteins). </em>The electron then passes through electron transport system and the energy from the electron fuels the hydrogen ions to move against their concentration gradient. Once the energy is utilized, the electron is accepted by photosystem I.

Hence, the correct option is C.

4 0
3 years ago
Read 2 more answers
1. If an organisms has a SPERM CELL with 4️⃣chromosomes. It will have____chromosomes in its SKIN CELL. *
Ksenya-84 [330]

Answer:

8 chromosomes in its skincell

Explanation:

Sex organ is (n)

Other than sex organ is 2(n)

4 0
3 years ago
When rainwater permeates through the soil and gets trapped underground, it is called
aksik [14]

Answer:

Option D.) Groundwater

Hope it helps pls mark me as BRAINLIST thanks :)

7 0
2 years ago
The role of enzymes in photosynthesis is
r-ruslan [8.4K]
Enzymes break up the electrons of water to yield oxygen and hydrogen gas
8 0
3 years ago
Two umbilical arteries leave the __________ of the fetus, enter the umbilical cord, and deliver blood to the placenta.
Aloiza [94]

Answer:

internal iliac arteries

Explanation:

6 0
3 years ago
Other questions:
  • A demonstration speech typically revolves around a process or sequence of events.
    8·1 answer
  • This organelle synthesizes proteins.
    14·2 answers
  • A woman and a man are both heterozygous for a recessive allele for a rare genetic disease. If they have one child, what is the p
    7·1 answer
  • Please help pleasseeeee will give anything I really need help please a lot of points
    6·1 answer
  • A student conducts an experiment to determine how the amount of water given to a plant affects its growth
    5·2 answers
  • When we consider the motion of particles such as the molecules that comprise air, which of the following is False?
    8·1 answer
  • Give one similarity between the cell theory and the theory of spontaneous generation.
    13·1 answer
  • 7. Explain why there is a difference in the amount of oxygen taken in at rest and during the vigorous activity, (2​
    9·2 answers
  • What term is used to describe a solution of lower osmolarity compared to one with a higher osmolarity?
    12·1 answer
  • Approximately+________%+of+the+stored+energy+of+an+organism+at+one+level+of+a+food+web+is+transferred+to+the+tissues+of+the+orga
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!