Luke travels 50km in 2.5 hours on his bike. What is his velocity?

Answer:

B. Madreporite

Explanation:

Answer: 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.

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 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.

Carbon moves through our planet over longer time scales as well. For example, over millions of years weathering of rocks on land can add carbon to surface water which eventually runs off to the ocean. Over long time scales, carbon is removed from seawater when the shells and bones of marine animals and plankton collect on the sea floor. These shells and bones are made of limestone, which contains carbon. When they are deposited on the sea floor, carbon is stored from the rest of the carbon cycle for some amount of time. The amount of limestone deposited in the ocean depends somewhat on the amount of warm, tropical, shallow oceans on the planet because this is where prolific limestone-producing organisms such as corals live. The carbon can be released back to the atmosphere if the limestone melts or is metamorphosed in a subduction zone.

Answer:

''Planets moves around the sun with constantly changing speed.''

''The sun uses its gravity to pull the planets towards it''

Explanation:

These two statements describes Newtons laws of Motion and Gravity. With statement 1, which shows the motion of the planets constantly changing due to the attraction of the sun. When the planets come close together to the sun, its orbital speed increases while on the other hand, when the planets goes farther from the sun, its orbital speed decreases. The statement 2 indicates that sun attracts other planets due to its gravity which allow them to move in a curved.

Answer:

Each one is fromt the plant cell

Explanation:

Answer:

The purpose of a crime scene barrier is to keep the public well back from any crime scene

Explanation:

1. the crime scene area or location is secured, and: a. yellow barrier tape is used to create an outer perimeter and if necessary, a staging or mobilization area when determined appropriate.

Answer: D

Explanation: Quick Explanation since you're in a hurry but I found that demographic transition makes the birth rate higher. D should be your best choice

Answer:

its D !!

Explanation:

Answer:

The answer in this question is show you made Sodium Hydroxide and Hydrogen Gas.

Answer:

Your muscles are forced to work without enough oxygen. In these situations, your working muscles generate ATP anaerobically (i.e., without oxygen) using a process called fermentation. Fermentation is beneficial in that it can generate ATP quickly for working muscle cells when oxygen is scarce.

Explanation:

When oxygen is not present or if an organism is not able to undergo aerobic respiration, pyruvate will undergo a process called fermentation. Fermentation does not require oxygen and is therefore anaerobic. Fermentation will replenish NAD+ from the NADH + H+ produced in glycolysis.

Answer:

the second option is correct.

So Iron can be found in many many different things.

•The core of the earth is majorly composed of Iron, Sulfur, and Nickel.

•It can be found In minerals such as Magnetite and Taconite.

•It can be found In meat, poultry, and fish.

Answer:  reducing all communication after conflict occurs ​

Explanation:

Reducing all communication after conflict occurs, thus correct option is D.

Good communication in conflict situations eases tension, builds trust, strengthens relationships and makes people feel at ease, because they are mutually understood.

At the same time, it remains firm on important points Reducing all communication after the conflict is not the way to de-escalate any conflict between the group.

.Learn more about de-esclate conflicts here:

https://brainly.com/question/1057592

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Answer: its B and D

Explanation:

Answer: surface mining

Explanation:

Answer:a

Explanation:

Answer:

How does cellular respiration work in animals?

When an animal breathes, it takes in oxygen gas and releases carbon dioxide gas into the atmosphere. This carbon dioxide is a waste product produced by the animal's cells during cellular respiration. Cellular respiration occurs in the individual cells. Digested foods have chemical energy stored in them.

Explanation:

Answer:

false

Explanation

Answer:

Chromosomes were first named by cytologists viewing dividing cells through a microscope. The modern definition of a chromosome now includes the function of heredity and the chemical composition. A chromosome is a DNA molecule that carries all or part of the hereditary information of an organism. In eukaryotic cells, the DNA is packaged with proteins in the nucleus, and varies in structure and appearance at different parts of the cell cycle.

Explanation:

Cells reproduce genetically identical copies of themselves by cycles of cell growth and division. The cell cycle diagram on the left shows that a cell division cycle consists of 4 stages:

G1 is the period after cell division, and before the start of DNA replication. Cells grow and monitor their environment to determine whether they should initiate another round of cell division.

S is the period of DNA synthesis, where cells replicate their chromosomes.

G2 is the period between the end of DNA replication and the start of cell division. Cells check to make sure DNA replication has successfully completed, and make any necessary repairs.

M is the actual period of cell division, consisting of prophase, metaphase, anaphase, telophase, and cytokinesis.

Answer:

Yes. Hydropower, Wind Power, and just about any other alternative produces less CO2 than natural gas

Explanation:

Answer:

c and d are true

Explanation:

Mode of reproduction for Escherichia coli, a prokaryotic organism

Can occur in animals through fragmentation

Answer:

Gravity.

Explanation:

Without air, living organisms would suffocate and die.

Without water, living organisms would dehydrate and die.

Without energy, living organisms would die instantly.

Without space, living organisms would be squished together and die.

The only logical answer left is gravity.

DNA is made up of molecules called nucleotides

Explanation:

Nucleotides containe a phosphate group, A sugar group and a nitrogen group. The four types of nucleotide bases are adenine (A,thymine(T),Guanine (G) ,cytosine(C) .In order to determine Genetic code

Answer:

I think it is A. Owl or D. Dodo bird

Explanation:

Answer:

Secondary succession

Hope this helped :)

Answer:

C

Explanation:

Carbon dioxide

Answer:

1. C

2. A

Explanation:

A  to contract to cause movement in the body