The correct answer is b: cattle on rangeland. A point source of pollution occurs from a single identifiable and usually spatially narrow source. These sources of pollution are usually relatively easily to quantify and manage. In contrast, a non-point source of pollution, such as cattle on rangeland or irrigated agriculture, is variable on both spatial and temporal scales. These sources of pollution are difficult to quantify and manage.
Diet and weightloss advertising puts super skinny models and actors/actresses saying they lost an insane amount of weight using their product. That is completely bias because they aren’t just going to say the model lost weight through other methods of weight loss because they are advertising THEIR product.
I would use skepticism evaluating these ads because I would be skeptical believing that someone lost 200 pounds in 2 months drinking some supplement.
Sharks are the top consumer in a food chain that begins with algae. Algae are producers that get their energy from the sun. Energy from the sun eventually is passed on to the shark through the food chain that begins with the algae.
Hope this helps!
The umbilical cord transport food/nutrients to the fetus. I hope this helps
