Chemical weathering may affect farming activities . Give reason

Chemical weathering changes the soil pH and affects the crops that grow on them

Explanation:

Chemical weathering refers to the breaking down of rocks through chemical reactions.

Whenever rocks which are chemically active come in contact with acidic rain, they react to form new compounds. These new compounds formed usually have different properties from their parent rocks.

As a result of chemical weathering, changes in the soil properties can occur such as its pH. These changes will affect the nutrients which can be found in them, thus affecting farming practices on such soil.

they use tree rings to figure out weather patters.