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Kaylis [27]
3 years ago
9

Which material is most fundamental to life on earth?

Chemistry
2 answers:
Gekata [30.6K]3 years ago
6 0
It would be radium 
Chris Ross
ohaa [14]3 years ago
5 0
The answer is A. hope it helps
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What are some of the possible solutions for solving air pollution issues?
skad [1K]

Answer:

Conserve energy - at home, at work, everywhere.

Look for the ENERGY STAR label when buying home or office equipment.

Carpool, use public transportation, bike, or walk whenever possible.

Follow gasoline refueling instructions for efficient vapor recovery, being careful not to spill fuel and always tightening your gas cap securely.

Consider purchasing portable gasoline containers labeled “spill-proof,” where available.

Keep car, boat, and other engines properly tuned.

Be sure your tires are properly inflated.

Use environmentally safe paints and cleaning products whenever possible.

Mulch or compost leaves and yard waste.

Consider using gas logs instead of wood.

Explanation:

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3 years ago
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What is the answer for this?
Dafna1 [17]
Particle E is an atom because on the periodic table the number of protons is the same exact number of electrons and the number of neutrons cannot exceed one because protons and neutrons add up to give electrons
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3 years ago
Are changes in the orientation of earths magnetic field
g100num [7]

Magnetic reversals

Explanation:

A change in the orientation of the earth's magnetic field is known as magnetic reversals.

During a magnetic reversal, the geographic south pole aligns with the magnetic north.

The geographic north pole aligns with the magnetic south.

  • The geomagnetic field of the earth is produced by the movement of metallic minerals in the outer core.
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learn more:

Sea floor spreading brainly.com/question/12037536

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3 years ago
Part 1. A glass bottle, which is half-filled with water, has a balloon attached to its opening. The bottle is placed in a hot wa
weeeeeb [17]

Answer:

See explanation

Explanation:

According to the kinetic molecular theory, the molecules that compose a gas are in constant random motion.

The temperature of a gas is a measure of the average kinetic energy of the gas molecules.

When the balloon was placed in a hot water bath, the balloon becomes larger because the gas inside the balloon expands. This is because, more kinetic energy is supplied to the molecules of the gas hence they spread out.

When the balloon is placed in cold water, the kinetic energy of the gas molecules in the balloon decreases as temperature decreases hence the balloon shrinks

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3 years ago
The scientific method helps scientists avoid injecting which of the following into their experiments? a. information b. conclusi
yanalaym [24]
The answer is D. Bias
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3 years ago
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