True or false. Nonmagnetic Rare Earth Metal Samarium can be used to repel sharks.

Answer:

XD ok wheres the paper

Explanation:

Answer:

A

Explanation:

B, C, and D all have something that causes the reaction But A Did itself

Answer: C, because a change in state is reversable without a reaction due to the fact that it is still the same substance, with no additional substances being made or without converting the current substance into another.

An example of chemical weathering are;

Chemical Weathering can be described as the type of weathering that do take place due to the breaking down of the rock particles into smaller pieces which is usually as a result of chemical process.

It should be noted that when the process is taking place it scould be due to the  Extreme heat and pressure  which can affect the composition of the particles and as  a result of this there could be formation of products from the break down.

Learn more about Chemical Weathering  at:

https://brainly.com/question/18357253

#SPJ1

Answer:

A

Explanation:

Food is digested in the stomach for several hours. During this time, a stomach enzyme called pepsin breaks down most of the protein in the food. The pancreas and gland cells of the small intestine secrete digestive enzymes that chemically break down complex food molecules into simpler ones.

Answer:

A

Explanation:

Answer:

carbohydrates, proteins and fats.Explanation:

Answer:

Explanation:

Instead, let's start applying what we learned so far by looking at the most common groups of molecules in food: carbohydrates, proteins and fats. These molecules are also called 'macronutrients' and are essential for us from a nutritional point of view.

Answer:

D is the right answer

Answer:

-------------------> A. acidity  <--------------------

Explanation:

The acidity of the substance can be found using a pH indicator, because that is what is trying to be determined. When you hear people say pH balance or imbalance, their talking about the acidity levels.

Answer:

8 Protons

Explanation:

Answer:

8

Explanation:

In the given graph, the Evolved Population is showing disruptive selection. Hence, the correct option is A. Disruptive selection.

Stabilizing selection is a form of natural selection where individuals with average phenotypes are more likely to survive and reproduce their number. In this selection, the population tends to maintain a stable phenotype. As shown in the graph, the population is maximum for the population having a moderate length of neck.

Disruptive selection is a type of natural selection where extreme phenotypes are preferred over average phenotypes, leading to an increase in genetic variation and the population becoming more diverse. In this type of selection, the population diverges into two or more distinct phenotypic groups. As shown in the graph, two ranges of the population are favored for having traits for extreme lengths of the neck.

To learn more about Disruptive selection:

https://brainly.com/question/32192613

Answer:

The United States believed it could win and believed that China would not intervene. ... They also hoped to take advantage of the USSR's boycott of the UN to get the UN to agree to military help for South Korea. The advance of communism elsewhere made America more determined

Answer:

2. In June 1950 communist North Korea invaded South Korea. The United States came to the aid of South Korea at the head of a United Nations force composed of more than a dozen countries. Communist China joined North Korea in the war in November 1950, unleashing a massive Chinese ground attack against American forces.

Explanation:

Answer: metal denting

Explanation:

a physical change is something that can be undone. while chemical changes are relatively permanent. You can reshape the metal so you know it is physical.

Answer:CH4(g) + 2O2(g) →2H2O(l) + CO2(g)

Explanation: CH4 is dioxide and water. So basically whats happening here is that CH4 is being burned down

Since hydrocarbon fuels only contain two elements, we always obtain the same two products when they burn.

Answer:

CH4(g) + 2O2(g) →2H2O(l) + CO2(g)

and it is the chemical reaction that makes it yellow

Explanation:

its obvious

Answer:

first one

Explanation:

Particle of solids are very close as the particle can not move they have exact volume,shape

Answer:

First one

Explanation:

since the particles of a solid are packed together.

Answer:

d

Explanation:

you can elimate a as your body has a fever to fight the infection and antibiotics are just there  to assist.   b is elimanated as slowing the life cycle would be modifying the germs genetic's which is not how antibiotcs work they just your bodys imune system.  c is elminated as stated in the question  the virus came back which not be possible if the bacteria stoped reproducing.   that leaves d which means that yould likley be perscribed a diffrent anti biotic

Answer:

There could be several possible reasons for a small gap between rails on a railway track, such as:

1. Expansion joints: Railways are designed to allow the tracks to expand and contract with changes in temperature. To accommodate this expansion, small gaps are left between the rail ends and filled with expansion joints or plates.

2. Wear and tear: Over time, the rails may experience wear and tear due to heavy loads, weather conditions, and other factors. As a result, small gaps can appear between the rails.

3. Maintenance: During maintenance activities, rail tracks may be adjusted or replaced, which could lead to small gaps between the rails.

4. Environmental factors: Environmental factors such as soil shifts, earthquakes or other natural disasters can also affect the alignment of the rails, leading to small gaps.

These are some of the possible reasons for a small gap between the rails on a railway track.

Answer:

The small gap left between the rails in a railway track is intentional and serves a specific purpose. This gap is known as the rail joint, and it allows for the expansion and contraction of the rails due to changes in temperature. When the temperature changes, the metal rails will expand or contract, and if they were joined together tightly, they could buckle or become deformed, which could be dangerous for trains passing over them. The rail joint allows the rails to move slightly and prevent damage to the track.

Additionally, the rail joint also allows for maintenance and repairs of the track. If there were no gap between the rails, it would be challenging to replace a damaged rail or perform routine maintenance, such as tightening bolts or lubricating joints. With the rail joint, maintenance personnel can easily access and work on the track.

Overall, the small gap left between the rails in a railway track is intentional and serves a crucial function in ensuring the safety and reliability of the track.

Answer:

+6.

Explanation:

So, a chromium atom here has an oxidation number of +6.

In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. As such, it generalizes a circle, which is the special type of ellipse in which the two focal points are the same.

Maybe they might use that math thing for Science.

Lines t and s intersect at point R. Obtuse vertical angles measure seventy-nine plus y degrees and four y minus eight degrees.

Answer:

nothing is here

Explanation:

Answer: I'm not really sure but I think its dew to the different heights and tempura going up and down and the flow of wind.

Explanation:

Answer:

Mountains make it possible for snow to be found at the equator. Why does the temperature become colder the higher up a Mountain? Generally the climate on mountains get progressively colder with increased altitude (the higher up you go).

Explanation:

Answer:

Here are some correct examples of weather:

Explanation:

espero te ayude

Answer:

red and white blood cells

Explanation:

Answer: its 5ft tall and 12 inches

Explanation: