Oil, coal, natural gas, and uranium are used to generate electrical energy. What is true about ALL of them

Answers

Answer 1
Answer:

Oil, coal, natural gas, and uranium are used to generate electrical energy, These all are fossil fuels.

What are  Fossil fuels?

Fossil fuels are non-renewable.  For example :Hydrogen is not a fuel. It is a way of storing or transporting energy. Distribution and infrastructure need to be refurbished to cope with hydrogen, which can metals by making them brittle.

Thus, this could be the answer.

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Answer 2
Answer: They're finite resources

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What were four lines of evidence Darwin used to support his argument for evolution?

Answers

Here are the following evidences that Charles Darwin used to support his argument for evolution:
Fossil history - This is used in order to study the historical evolution of animals.
Geography - This was used in order to study the strains of evolved species in various areas. 
Embryology  - This was used in order to prove that evolution is based on birth.
Anatomy - This was studied in order to learn how living species evolve based on surroundings and how their body parts work.

Help me the first to answer will get brainiest What organic substance are both of these enzymes digesting ?

Answers

Answer:

if a substance has a pH higher than 7 it is considered to be a

base

if a substance has a pH lower than 7, it is considered to be an

acid

The substance with which an enzyme reacts is its

substrate

hope this helps you!!!!

Explanation:

Do predators really kill only the old and sick prey? What evidence is there for this statement

Answers

There are many factors that determine what a predator will prey on. For instance if the predator is starving or if they are hunting in a pack. Predators will usually prey on animals that are easiest to be captured without using too much energy. The sick, young, old, small and unaware animals will often times fall prey since they are easiest to be caught. Predators don't necessarily prey only on the ill/ injured. Sick prey may be overlooked because their bodies may not provide the necessary sustence for the predator and others it may be feeding. Healthy large slow moving animals may be difficult to kill but the payoff is greater, especially if a pack is involved.

Final answer:

Predators do not only kill old and sick prey. They can also target healthy prey depending on factors like population dynamics and resource abundance.

Explanation:

Yes, predators do not only kill old and sick prey. Predation is a complex interaction that involves predators hunting and consuming prey. While predators may target weaker and more vulnerable individuals, they can also target healthy and strong individuals if necessary.

One example of this is the cycling of predator and prey populations, such as the lynx and snowshoe hare. As the hare population increases, there is more food available for the lynx, allowing its population to increase as well. However, when the lynx population grows too large, it can kill a significant number of hares, leading to a decline in the hare population due to scarcity of food.

Therefore, predators can kill both old and sick prey as well as healthy prey, depending on various factors such as population dynamics, abundance of resources, and competition.

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When land is completely bare, with no topsoil present, the process of ___________ occurs on this newly formed land.primary succession
secondary succession
tertiary succession

Answers

Answer:

Secondary

Explanation:

Where is the carbon taken in by plants during photosynthesis stored?a. the ground
b. plant structures
c. the air
d. all of the above

Answers

The answer is b. plant structures.

Photosynthesis is the process by which plants use solar energy to produce glucose from carbon dioxide and water. Carbon dioxide enters the leaves, plant structures, through the stoma and is incorporated into organic compounds. 

The carbon absorbed by all types of plants during photosynthesis is stored in plant structures (Option b).

What is photosynthesis?

Photosynthesis refers to a group of chemical reactions that plants use to generate carbon-based structures and energy by means of solar radiation.

Photosynthesis uses the carbon generated during light-independent reactions to produce structures.

Plant structures include different plant organs such as leaves, shoots, roots, reproductive structures, etc.

In conclusion, the carbon absorbed by plants during photosynthesis is stored in plant structures (Option b).

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What is the purpose of the scientific method

Answers

The purpose of the scientific method is to clearly do an experiment by a process of steps helping you keep track, and correct any mistakes.
The basic steps are: 1. Problem, Purpose, or Research Question: The problem or research question is the single most important part of thescientific method. Every part of your project is done to answer this question.