What are some "life's necessities" provided by the River Thames in the past? Atransportation B grain harvests light to see with at night D oxygen

In the past, the River Thames provided several "life's necessities":

1. Transportation: The River Thames served as a vital transportation route for goods and people. It facilitated the movement of goods, including materials for construction, coal, and agricultural products, between different parts of London and surrounding areas. It also allowed for the transportation of people through boat services and ferries.

2. Grain Harvests: The River Thames played a significant role in supporting the local agriculture and grain production. It provided a means to transport grain harvested from surrounding farms to the markets in London. The river allowed for the efficient movement of large quantities of grains, which were essential for sustenance and trade.

3. Light to see with at night: The River Thames played a role in providing light during the night, particularly in the form of navigational aids. Gas lamps would be placed along the riverside to guide ships and boats, enhancing safety during nighttime travel on the river.

4. Oxygen: Although the River Thames is not a direct source of oxygen, it indirectly contributes to oxygen production through its interaction with aquatic plants and algae. These photosynthetic organisms in the river produce oxygen as a byproduct, helping to maintain oxygen levels in the surrounding ecosystem and supporting aquatic life.

It's important to note that while the River Thames provided these necessities in the past, some of these roles might have diminished or changed over time due to technological advancements and shifts in societal practices.