How many half-lives did the rock go through? 4. If a rock had 40 daughter atoms present, how old would the rock be?

Answers

Answer 1
160 I would say hope this helped
Answer 2
160 should be the right answer

Related Questions

True or False: 100 year old soil has less nutrients in it than 20 year old soil.

Answers

True because Steadily and alarmingly, humans have been depleting Earth's soil resources faster than the nutrients can be replenished

Answer:

False.

Explanation:

What type of relationship does the Cook Islands have with New Zealand, and how does it benefit from this relationship? plz have at least 5 sentances.

Answers

Answer:

The Cook Islands is a representative democracy with a parliamentary system in an associated state relationship with New Zealand. Executive power is exercised by the government, with the Chief Minister as head of government. Legislative power is vested in both the government and the Parliament of the Cook Islands.

Explanation:

The Cook Islands is a representative democracy with a parliamentary system in an associated state relationship with New Zealand. Executive power is exercised by the government, with the Chief Minister as head of government. Legislative power is vested in both the government and the Parliament of the Cook Islands.

Yeah always works out in the end to be honest

PLEASE HELP! DUE SOON!! I'll give Brainlest!
Describe how ice wedging and plant roots are similar in breaking rocks down.

Answers

Answer:

they are similar because a plants roots go in the cracks in a rock and as it grows it physically breaks apart the rock and when it is cold and it rains the water seeps down into the cracks and as it freezes it expands causing the rock to physically break apart

Explanation:

so they are similar because they go into the cracks in rocks and slowly expand causing the rock to break apart

There are a number of physical weathering processes that break earth materials apart, a very common one is called root wedging. Plant roots work their way into rock crevices called joints. ... Frost wedging occurs when water freezes in rock fractures

does confining stress increase volume

Answers

No I do not believe confine stress increases volume but I’m not sure

Answer:

Confining pressure affects brittle fracture strength by suppressing the growth of dilatant microcracks.

Explanation:

What are the three primary colors of light? (Select three.)

violet
indigo
blue
red
green
yellow

Answers

the three primary colors of light are red, green, and blue.
Red, blue, and yellow!!! :)

Which of the following is not one of the three branches of government in Australia and New Zealand?
A.
judicial
B.
legislative
C.
republican
D.
executive
PLZ HURRY!!

Answers

Answer:

republican

Explanation:

just looked it up

Republican, and you can find it on the Internet

According to geographers’ estimates, two out of three people in the world will live in a city by the year 2030. This migration to urban centers creates an increase in urban populations, resulting in the formation of megacities. Geographers define a megacity as any city with a population of more than 10 million people. Today, there are 25 megacities in the world.

Explore this resource on megacities, clicking through the interactive and reading about a few megacities in the world. Then pick two cities, research them, and create a profile about them. For each city, include the following information:

location
brief history of the city
population density
problems currently facing the city
what city planners are doing to address the city’s problems
what city planners could be doing differently

Answers

Just look up 2 mega cities (question)
So like New York City location
New York City brief history
New York City population density
Hope this helps.

Answer:

dude i have this same question and im overrrr it

Explanation:

Many people in South America are subsistence farmers. Subsistence farming is...
A
growing only enough crops for food to fed the family.

B
focusing on growing cash crops to sell to make money.

C
growing only one type of crop.

D
growing crops in higher elevations.

Answers

Answer:    

A: growing only enough crops for food to feed the family.

Explanation:    

Substance farming is farming just enough to sustain someone.

I hope this helped <3

A. Growing only enough crops for food to feed the family

Subsistence farmers also use any surplus of crops for trade or sale

Point A is to the left of Point B on a horizontal number line.

What could be the values of Point A and Point B ?

Answers

Answer:

Point A could be any number that is lower than point B.

Explanation:

Since A is to the left on a number line it is lower then the number to the right (point B)

Some examples of numbers are A=2 and B=6

A can be any number lower than b

Hey can anyone come help with this?

it's actually pretty easy but ima still ask

Answers

Its capacity to store body fat to survive periods of food shortage
Answer (The capacity to store body fat to survive periods of food shortage)

Hope this was helpful :) have a nice day !

Lina applies a constant force of 30 N as she pushes a dresser 3 m. How much work did Lina do on the dresser

Answers

Answer:

srry

Explanation:

Is there any choice. I think I know the answer but I need to make sure

Savannah’s location contributed to the city’s early economic success because it enabled the city to

Answers

unfinished question :/ can’t answer w/o other information
It enables the city to GROW

What is the average salinity of sea water?
3.5% salt and other minerals
4.2% salt and other minerals
2.4% salt and other minerals
3.0% salt and other minerals

Answers

The average salinity of water is approximately 3.5%, or 35 parts per thousand.

This implies that for every 1 litre of sea water there are 35 grams of salts dissolved in it.

Even though a vast majority of seawater is found in oceans with salinity around 3.5%, seawater is not consistently saline throughout the world.

The answer you’re looking for is
A. 3.5
Enjoy the rest of your day/night :)

100%
How does freezing water cause the weathering of rocks?
A. holds them in place
B. makes them longer
O
C. cracks them
0
D. makes them thicker
o
E.makes them heavier

Answers

Answer:

The answer is C.

Explanation:

That process occurs when the water inside of rocks freezes and expands. That expansion cracks the rocks from the inside and eventually breaks them apart.

Hope this helps! <3

Answer:

I think it's d

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