5W'S
Who:
Where:
When:
What:
Why:
Summary:

Who could be the people in the passage.

When could be what time of day

where the place their in

Explanation:

Who discovered Hydroponic System?

The earliest modern reference to hydroponics (last 100 years) was by a man named William Frederick Gericke. While working at the University of California, Berkeley, he began to popularize the idea that plants could be grown in a solution of nutrients and water instead of soil.

What is Hydroponics system?

A hydroponics system is a way to grow plants using formulated, nutrient-rich water instead of soil. In hydroponics, the plant is suspended with a net pot which allows for the plant to grow above the water, while the roots go down through the netting and into the water solution.

Where Hydroponics system is used?

Hydroponic refers to a system where water is used as a source of nutrients to grow plants and no dirt or soil is used. Generally, nutrients are added to the water and then the water is circulated through the soilless growth media so that the plants are not deprived of any nutrients.

When hydroponics system is created?

William F. Gericke, a biologist at Berkeley, brought hydroponics into mainstream consciousness in the 1930s. He first made waves with a 1929 paper titled “Aquiculture—A Means of Crop Production” that was published in the American Journal of Botany.

the answer is

a) revise existing treaties

b) do away with political alliances

c) prevent the spread of communism

d) bring an end to european colonization

the main goal of the southeast asia treaty organization was to prevent the spread of communism in southeast asia.

answer; (true);