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Katarina [22]
3 years ago
8

How did the lab activities help you answer the lesson question: How does human activity affect Earth’s freshwater resources? Wha

t did you learn from conducting this lab?
Biology
2 answers:
Sphinxa [80]3 years ago
8 0

Answer:

Since the origin of humans on this planet, they have been trying their best to make their lives easier on this planet. In doing so, human activities have some how heavily damaged the Earth. Many day to day activities of humans are dangerous for the Earth.

Some of the consequences of human activities on the Earth's fresh water are :

Extinction of many aquatic species:

The water consumed by humans comes from the fresh water oceans. As the population of humans is increasing enormously, the water from the oceans is being consumed at dangerous levels. This has caused many species of aquatic animals to become extinct or to be at a verge of extinction as they do  not have a habitat to survive or reproduce.

Pollution:

Many heavy industries, house sewage, farmers dispose waste into the fresh water. Hence, killing aquatic animals and polluting the fresh water ecosystems.

Alex787 [66]3 years ago
5 0

Answer:

In the lab, I observed how pollutants affect the pH of lakes and groundwater. Pollutants that result from human activity such as using soap and citric acid can change the pH of water. If the pH of the water changes, it might not be safe for people to drink that water or for organisms to live in it. I also learned that the pollution in a lake can end up in groundwater. Even though the soil can filter some pollutants and the water may look clean, its quality may not be good.

Explanation:

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Qué consecuencias tendría para los consumidores no restituir esas vitaminas en las leches descremadas
sesenic [268]

Answer:

No se producen consecuencias si las vitaminas se toman en el rango normal.

Explicación:

La caída del cabello, el malestar gastrointestinal, la fatiga y el daño leve a los nervios son algunas de las consecuencias que se pueden obtener si se toma demasiado selenio. Las vitaminas son esenciales para la salud porque nuestro cuerpo las necesita para crecer y desarrollarse. Si estas vitaminas se usan en un rango normal, causan un buen efecto en el cuerpo, pero si tomamos demasiadas vitaminas, causa toxicidad y conduce a una serie de enfermedades. Entonces, si la concentración de vitaminas está en un rango normal en la leche desnatada, tiene un buen efecto en nuestra salud, de lo contrario, causa un problema.

8 0
3 years ago
Help: explain how sunlight is the primary source of energy for the life of a bear...
photoshop1234 [79]
Bears eat plants such as berries, and plants get their energy from the sun. So his energy source's energy source is sunlight, which also makes it his energy source
4 0
3 years ago
Which relatively flat feature of the ocean floor is in the open ocean and borders the continental shelf? abyssal plain mid-ocean
Dimas [21]
Lying generally between the foot of acontinental rise and a mid-ocean ridge,abyssal plains cover more than 50% of the Earth's surface. the zone of theocean floor that separates the thinoceanic crust from thick continentalcrust. ... the slope between the outer edge of the continental shelf and thedeep ocean floor.
4 0
3 years ago
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You are asked to test the biochemical oxygen demand (BOD) of a stream in your town. After observing the BOD over a week, you cal
Lemur [1.5K]
B. The water is likely contaminated with high levels of pollution or waste
6 0
3 years ago
80 kg ____ 7910 g<br><br> a. &lt;<br><br> b. &gt;<br><br> c. =
DanielleElmas [232]

Hey!

80 kilograms is 80,000 grams!

7910 is only 7.910 kilograms!

Final Answer - 80kg > 7910g

Hope This Helps!

6 0
3 years ago
Read 2 more answers
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