How can we determine the approximate age of earth?

1 answer:

6 0

Species and Rock testing from by the core can tell us around how old are earth was and maybe even some fossils can give us an approximation or estimate of while our earth was forming and what was happening.

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What is the ph solution of 0.004m

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Answer:

2.4 is the pH of 0.004M H2SO4solution.

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3 years ago

Whst is the correct term for an area of rotating current in a ocean

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Answer:

A gyre is a large system of rotating ocean currents.

Together, these larger and more permanent currents make up the systems of currents known as gyres.

Explanation:

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3 years ago

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What classification of protists would include paramecia?

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Heterotrophs is the answer

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A biomolecule that is a large, complex set of chains composed of alternating subunits called

DiKsa [7]

Answer:

This question lacks options, the options are:

A) storing energy

B) catalyzing cellular reactions

C) building tissue

D) storing genetic information

The answer is D.

Explanation:

There are four major biological molecules found in living systems. They are as follows: carbohydrate, protein, lipids and nucleic acids. The biomolecule being described in the question is a NUCLEIC ACID. Nucleic acids are complex biomolecules made up of long chains of monomeric units called NUCLEOTIDES.

Nucleic acids are two in nature; Ribonucleic acid (RNA) and Deoxyribonucleic acid (DNA). These two nucleic acids are involved in the storage of genetic information in all living organisms. They carry the inheritable genetic information of living organisms.

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3 years ago

Anna tries to keep her kilocalorie intake under control. She eats mostly lean meats or fish and a lot of vegetables. Yesterday,

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Answer:

The calories Anna consumed for dinner is 315 kcal (300kcal). The calories that came from proteins is 108 kcal (100kcal).

Explanation:

Macronutrients are nutrients such as protein, carbohydrates, and fat that provide the energy required for the normal functioning of the body. Usually, the energy obtained from macronutrients is expressed in calories. Each gram of protein provides 4 kilocalories while each gram of fat provides 9 kilocalories. Carbohydrates per gram also provide 4 kilocalories.

Here, Anna consumed 7 grams of fat (in salmon)

, 36 grams of carbohydrates (in sweet potatoes and asparagus) and 27 grams of protein (in salmon, sweet potatoes, and asparagus) for the dinner.

Therefore, total calories in 7 grams of fat is $7*9=63$ kilocalories.