All categories

3 years ago

Explain how weathering, erosion, and subduction/volcanic activity help move or transfer carbon around the

Biology

1 answer:

chubhunter [2.5K]3 years ago

3 0

Answer:

Plankton use carbon to make carbonate (CO3) shells in the ocean. The shells sink and accumulate into layers of sediments and eventually rocks. Rocks are pushed deep into the earth and melt at subduction zones, dissolving the carbon. Volcanic eruptions release carbon dioxide into the atmosphere.

Explanation:

You might be interested in

Iron-55 has a half-life of 3 years. How much of a 40 gram sample will remain after 12 years? A. 0 grams B. 4 grams C. 2.5 grams

Readme [11.4K]

Answer:

$\boxed {\boxed {\sf C. \ 2.5 \ grams }}$

Explanation:

We are asked to find how much of a 40 gram sample remains after 12 years.

Iron-55 has a half-life of 3 years. Therefore, after 12 years, 4 half-lives have been completed.

12 years/3 years = 4 half-lives

Every time a half-life is completed, half of the sample's mass decays. Remember we start with a 40 gram sample.

1 half- life: 40 g / 2 = 20 g
2 half-lives: 20 g / 2= 10 g
3 half-lives: 10 g / 2 = 5 g
4 half-lives: 5 g / 2 = 2.5 g

There is also a formula that can be used to solve this problem.

$A= A_o(\frac {1}{2})^{\frac{t}{hl}$

Where A₀ is the initial amount, t is the time, and hl is the half-life.

We know 40 grams is the inital amount, 12 years is the time, and 3 years is the halflife.

A₀= 40 g
t= 12
hl= 3

$A= 40 \ g (\frac{1}{2})^\frac{12}{3}$

$A= 40 \ g (\frac{1}{2})^4$

$A= 40 \ g * 0.0625$

$\bold {A= 2.5 \ g}$

After 12 years, 2.5 grams of Iron-55 will remain.

4 0

3 years ago

What do catalytic converters do?

schepotkina [342]

Answer:

a catalytic converter is device made up from metals like metals like palladium and rhodium to reduce the toxic gases emitted in the environment

Explanation:

Catalytic converter is an exhaust emission controlling device. It was made to reduce pollutants in air. Almost every automobile has a catalytic converter. It is present to completely remove the fuel that was not combusted and other toxic/dangerous compounds before they are let out in the environment.

If the catalytic converters are not used then the harmful compounds are released in the air and thus increasing air pollution and also decreasing the air quality for breathing in the surrounding environment.

5 0

3 years ago

Read 2 more answers

How do bacteria differ from the cells of the organisms they infect?

DanielleElmas [232]

I think it's A. They have a cell membrane.

Hope this helps!

8 0

3 years ago

Describe the stages of photosynthesis. Use the terms thylakoid, light-dependent reactions and light-independent reactions.

KatRina [158]

Photosynthesis in plants occurs in two stages. These stages are known as the light-dependent reactions and the Calvin Cycle.

The first stage of photosynthesis is the light dependent reactions. These reactions take place on the thylakoid membrane inside the chloroplast. During this stage light energy is converted to ATP (chemical energy) and NADPH (reducing power).

The second stage of photosynthesis is the Calvin Cycle. These reactions occur in the stroma of the chloroplast. Energy from ATP and electrons from NADPH are used to convert carbon dioxide into glucose and other products.

7 0

3 years ago

How do barnacles eat? Do you think barnacles are able to eat when out of water? Why?

natima [27]

Answer:

<h2>When the tide goes out, the barnacle closes shop to conserve moisture. As the tide comes in, a muscle opens up these four plates, and the feathery legs of the barnacle sift the water for food.</h2>

please follow me and mark me as brainlist 

6 0

3 years ago