\begin{tabular}{|l|l|}
\hline
\multicolumn{1}{|c|}{ Environmental Factor } & Impact \\
\hline
Increase in precipitation & High \\
\hline
Increase in the number of factories in nearby areas & High \\
\hline
Change in length of days & Low \\
\hline
Introduction of invasive species & Low \\
\hline
\end{tabular}

1. Explain why an increase in precipitation and the number of nearby factories has a greater impact on the occurrence of mariflowers than changes in temperature, length of day, and invasive species. (15 points)



Answer :

Certainly! Let's discuss why some environmental factors have a greater impact on the occurrence of mariflowers compared to others.

### Increase in Precipitation
Impact: High
- Water Availability: Water is a critical resource for every living plant, including mariflowers. Increased precipitation directly increases the availability of water in the soil, which is essential for mariflower growth and survival.
- Nutrient Uptake: Sufficient water helps plants to absorb nutrients from the soil more effectively. Without adequate water, even nutrient-rich soil won't be as beneficial if the plants can't access these nutrients.
- General Growth: Adequate water leads to healthier, more robust plants, aiding in processes such as photosynthesis, transpiration, and nutrient transport within the plant system.

### Increase in the Number of Nearby Factories
Impact: High
- Pollution: Factories are often sources of pollutants like heavy metals, chemicals, and particulates. These pollutants can contaminate the soil and water, making the environment less hospitable for the mariflowers.
- Air Quality: Factories may also release pollutants into the air, which can affect the plants’ ability to photosynthesize and grow properly.
- Soil Quality: Industrial activities can lead to soil degradation by introducing toxins and altering soil pH levels, making it difficult for the mariflowers to thrive.

### Change in Temperature
Impact: Moderate to Low
- While temperature changes can affect growth rates and flowering periods, plants generally have a temperature range within which they can adapt and survive. Mariflowers may be resilient enough to moderate fluctuations in temperature but still could be impacted negatively by extreme changes such as frost or excessive heat.

### Change in Length of Day
Impact: Low
- Photoperiodism: While changes in the length of day (photoperiod) can influence flowering and growth cycles, many plants, including mariflowers, have some degree of adaptability to seasonal and daily changes in light exposure. A change in the length of the day is generally gradual and cyclical, allowing plants time to adjust.

### Introduction of Invasive Species
Impact: Low
- Competition: Invasive species can compete with mariflowers for resources such as light, water, and nutrients. However, the impact of an invasive species can vary widely depending on the specific species and existing ecosystem. In comparison to immediate and direct effects like pollution and water availability, the impact of invasive species tends to be more gradual.

In summary, an increase in precipitation provides necessary water that supports plant growth and health, while the increase in the number of nearby factories introduces pollutants that can severely damage the growing environment. These factors have a more immediate and pronounced effect on the occurrence of mariflowers compared to changes in temperature, length of day, and the introduction of invasive species, which have more variable and often less direct impacts.

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