1. Why is accessible drinkable water such a small portion of Earth's total supply of fresh water?
a . fresh water is in the ocean
b . fresh water is in the clouds
c . fresh water is below the ground
d . fresh water is in the ice caps and glaciers *****
2. What does turbidity measure?
a . amount of dissolved oxygen in water
b . clarity or cloudiness in water *****
c . amount of nitrates or phosphates in water
d . temperature of water
3. How does overgrowth of algae actually cause algae to die?
a . water becomes to cloudy so not enough light for photosynthesis *****
b . to much oxygen in water
c . temperature increase in water
d . pH increase
4. Which of the following describes watershed?
a . valley between mountains or hills
b . place where tributaries meet up and form a larger lake
c . where water infiltrates and absorbed into the ground
d . an area of land were all water drains into the same body of water *****
Thank you Answer Giver! I used your answers and I got a 100%! God Bless You!
1. D
2. B
3. A
4. D
100%
wrong
all correct.
Thanks
1 D
2 A
3 C
4 C
THE REALLL ANSWERS for the bois
1. The correct answer is d. Fresh water is in the ice caps and glaciers.
To understand why accessible drinkable water is such a small portion of Earth's total supply of fresh water, we must consider the distribution of fresh water sources. Fresh water is found in various places on Earth, including in the ocean, clouds, below the ground, and in the ice caps and glaciers.
However, the majority of fresh water on our planet is stored in the form of ice caps and glaciers. These are massive bodies of ice that contain a significant amount of freshwater. Unfortunately, a large portion of this freshwater is not easily accessible or readily available for human use.
Ice caps and glaciers are typically located in remote and inhospitable regions, such as polar areas and high-altitude mountainous regions. These locations make it difficult to extract and transport the ice or melt it into drinkable water.
In addition, climate change has been causing the melting of these ice caps and glaciers at an accelerated rate. This further reduces the amount of accessible drinkable water from Earth's total supply of fresh water.
2. The correct answer is b. Turbidity measures the clarity or cloudiness in water.
Turbidity is a measure of the clarity or cloudiness of water caused by suspended particles. These particles can include sediment, algae, bacteria, and other substances. Turbidity is an important parameter in water quality assessment because it affects various aspects of aquatic ecosystems and human use of water.
Turbidity is typically measured using a device called a turbidimeter. The turbidimeter measures the amount of light scattered or absorbed by the suspended particles in water. The higher the turbidity value, the cloudier or murkier the water appears.
High turbidity levels can interfere with various processes, such as light penetration, photosynthesis, and the survival of aquatic organisms. It can also indicate the presence of pollutants or excessive nutrients in the water, which can negatively impact water quality.
3. The correct answer is a. The overgrowth of algae causes the water to become too cloudy, which reduces the amount of light available for photosynthesis, leading to the death of algae.
Algae are microscopic aquatic plants that require sunlight for photosynthesis, a process through which they convert light energy into chemical energy. However, when there is an excess of nutrients, such as nitrogen and phosphorus, in the water, it can lead to an overgrowth of algae.
As the algae population increases, the water can become densely populated with algal cells. This can result in the water becoming cloudy or turbid due to the abundance of suspended algae.
The increased cloudiness reduces the amount of light that can penetrate the water. Consequently, the algae at lower depths or within the dense population may not receive enough light for photosynthesis, which is essential for their survival and growth.
Without sufficient light for photosynthesis, the algae can deplete the available nutrients and oxygen in the water, leading to their own demise. This process is often referred to as algal bloom collapse, where the excessive growth of algae eventually leads to their death and the depletion of oxygen in the water, negatively impacting aquatic life.
4. The correct answer is d. A watershed is an area of land where all water drains into the same body of water.
A watershed, also known as a drainage basin or catchment area, is an area of land that collects and drains water from rainfall, snowmelt, or groundwater into a common outlet, such as a river, lake, or ocean.
When precipitation falls onto the land within a watershed, it follows a natural process of flowing downhill, gathering in streams, rivers, and eventually into the main body of water that defines the watershed. Watersheds can vary in size from small drainage areas to vast river basins.
The concept of a watershed is important in understanding how water moves and is distributed across a landscape. It helps us study and manage water resources, assess water quality, and understand the interconnectedness between different areas within a river basin.
Watersheds are also vital for ecosystems as they provide habitats for various plant and animal species. They play a crucial role in regulating the flow of water, filtering pollutants, and maintaining the overall health of aquatic ecosystems.