Please help meeeee!!!!!!!There is a big push right now in trying to rely on nonrenewable resources for the majority of our energy needs. Should we even try to power the world with 100% renewable resources? Justify your reasoning
Answers
Answer: Non-renewable energy comes from sources that will run out or will not be replenished in our lifetimes—or even in many, many lifetimes.
Most non-renewable energy sources are fossil fuels: coal, petroleum, and natural gas. Carbon is the main element in fossil fuels. For this reason, the time period that fossil fuels formed (about 360-300 million years ago) is called the Carboniferous Period.
All fossil fuels formed in a similar way. Hundreds of millions of years ago, even before the dinosaurs, Earth had a different landscape. It was covered with wide, shallow seas and swampy forests.
Plants, algae, and plankton grew in these ancient wetlands. They absorbed sunlight and created energy through photosynthesis. When they died, the organisms drifted to the bottom of the sea or lake. There was energy stored in the plants and animals when they died.
Over time, the dead plants were crushed under the seabed. Rocks and other sediment piled on top of them, creating high heat and pressure underground. In this environment, the plant and animal remains eventually turned into fossil fuels (coal, natural gas, and petroleum). Today, there are huge underground pockets (called reservoirs) of these non-renewable sources of energy all over the world.
Advantages and Disadvantages
Fossil fuels are a valuable source of energy. They are relatively inexpensive to extract. They can also be stored, piped, or shipped anywhere in the world.
However, burning fossil fuels is harmful for the environment. When coal and oil are burned, they release particles that can pollute the air, water, and land. Some of these particles are caught and set aside, but many of them are released into the air.
Burning fossil fuels also upsets Earth’s “carbon budget,” which balances the carbon in the ocean, earth, and air. When fossil fuels are combusted (heated), they release carbon dioxide into the atmosphere. Carbon dioxide is a gas that keeps heat in Earth’s atmosphere, a process called the “greenhouse effect.” The greenhouse effect is necessary to life on Earth, but relies on a balanced carbon budget.
The carbon in fossil fuels has been sequestered, or stored, underground for millions of years. By removing this sequestered carbon from the earth and releasing it into the atmosphere, Earth’s carbon budget is out of balance. This contributes to temperatures rising faster than organisms can adapt.
Related Questions
A scientist studies the DNA of three different species. The DNA from species A is more similar to DNA from species B than DNA from species C. Which species are probably the most closely related? Explain your answer.
Calculate the heat required for the following two processes, and compare the results.a. A 100.0 g sample of solid ethanol melts at its melting point. Hfus = 4.94 kJ/molb. A 100.0 g sample of liquid ethanol vaporizes at its boiling point. Hvap = 38.6 kJ/mol
Which of the following is the best name for a compound made from calcium and bromine? (CaBr2) calcium bromide calcium dibromide monocalcium dibromide calcium bromine II
1. A scientific hypothesis can become a theory if ______.A) the entire community accepts itB) the hypothesis is tested extensively and competing hypothesis are eliminatedC) there are no other competing hypothesisD) the hypothesis can be tested at least once2) A preliminary untested explanation that tries to explain how or why things happen in the manner observed is a scientific ________.A) lawB) theoryC) factD) hypothesis
Answers
Answers
Answer:
atoms are neutral or they have equal number of proton and electron but ions can be cation(positively charged) or anion(negatively charged) based on the number of electron the atm lose and gain respectively
Final answer:
An atom is the smallest unit of matter, with a neutral charge. An ion, however, is an atom that has either gained or lost electrons, giving it a net positive or negative charge. The difference between an atom and an ion is thus primarily about their charge.
Explanation:
An atom is the fundamental unit of matter made up of protons, neutrons, and electrons. In a neutral atom, the number of electrons (which carry a negative charge) equals the number of protons (which carry a positive charge). This makes the overall charge of an atom neutral.
An ion, on the other hand, is an atom that has gained or lost electrons, thus it has a net charge, as the number of electrons does not equal the number of protons. Positive ions, or cations, form when an atom loses electrons, and negative ions, or anions, form when an atom gains electrons.
For example, the anion of chlorine is chloride, and the anion of sulfur is sulfide. The difference between an atom and an ion, therefore, lies primarily in their charge, stemming from the shift in the balance between their numbers of protons and electrons.
Learn more about Atoms and Ions here:
#SPJ12
Why can you only change 1 variable in an experiment??? #Science
Answers
Answers
A tadpole starts out as a body mass with an elongated tail. As metamorphosis takes effect, it begins sprouting legs and arms and grows small teeth that allow it to eat algae and small bugs. The body elongates, and the tail shrinks. The main difference, however, in the body structure of a tadpole is that it has gills. Gills allow the tadpole to breathe underwater. This is important because it does not have legs and arms yet, or the muscular structure to support itself on land.
Frogs have a strong muscular structure that allows them to be mobile both on land and in the water. Their hind legs are long and powerful, and their feet are webbed for greater swimming efficiency. Most importantly, mature frogs breathe through lungs instead of gills. Mature frogs can no longer breathe under water.
Movement
Tadpoles have one way of moving: swimming. Tadpoles will stay in the water until they evolve into frogs. Young tadpoles are not very proficient swimmers and attach themselves to foliage until they are more developed. As they mature, the tadpoles begin to learn to swim by moving their tails back and forth.
Frogs, on the other hand, can both swim and hop. The difference between a frog swimming and a tadpole swimming is the means of propulsion. Tadpoles use their tails, but frogs have no tails. Frogs use their hind legs and propel themselves forward in a kicking motion. On land, frogs can move by hopping around, something that tadpoles are not capable of.
B)2,1,1,2
C)3,2,1,4
D)1,2,2,1
Answers
The numbers to be added to the blanks to balance this chemical equation are 2, 1 , 1 and 2
Explanation:
According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.
Thus in the reactants, there are 2 atoms of hydrogen , 1 atom of oxygen and 4 atoms of flourine.Thus there will be atoms of hydrogen , 1 atom of oxygen and 4 atoms of flourine in the product as well.
Learn more about conservation of mass
Answers
Answer:
. If both parents have wavy hair, what is
the phenotype (and genotype) ratio for
their offspring?
A.3:1 (curly to straight)
B.All wavy haired offspring
C. 1:2:1 (curly: wavy: straight)
D.9:3:3:1
Explanation: