Four samples of the same material with identical composition and mass were cut as shown in the diagrams below.

When subjected to the same chemical weathering, which sample will weather at the fastest rate?

1) A
2) B
3) C
4) D

D

Explanation:

Sample D will undergo the fastest rate when subjected to chemical weathering.

What is weathering?

From the given choices, option D will have the largest surface area exposed to chemical actions. It has more surface area compared to the others. The more broken a mass is, the more its surface area is.

Reaction rates are affected by:

The last cube has the highest surface area and will have the fastest rate of weathering.

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.