The statement above is False
During the Eocene period , the condition of the environment is still not suitable for human evolution due to the large number of large beast running around, less amount of plants that can be consumable, extremely cold weather , etc etc. . During this period, the one that is evolved is horses and dogs because the environment is very suitable for them to survive.
Answer:
false
Explanation:
2. Why did some substances require larger additions before a color change was seen? What does this indicate about the strength of the acid or base?
3. What happened in the final step of the experiment? What does the final color indicate?
4. To what extent was this experiment useful in determining pH? Could a specific pH be determined using this procedure?
5. Why are acid and base indicators important? How could they be used in everyday life?
PLEASE HURRY! I will give you 50 point.
The experiment revealed that the color change associated with various substances signifies the strength of the acid or base in the substance. This experiment was effective in distinguishing between acids and bases, but did not provide specific pH values. Acid and base indicators are important both in the laboratory and in everyday life.
In this experiment, I hypothesized that certain substances would change color indicating varying levels of acidity or alkalinity. My hypothesis aligned with the data as different substances required larger additions before a color change ensued. This signifies the strength of the acid or base, with stronger acids or bases needing larger amounts for a noticeable change. In the final step, the color transformation denoted the pH of the substance. This experiment was useful in determining pH, but did not give specific pH values.
Acid and base indicators are crucial for identifying the strength of acids and bases as seen in this experiment. They could be used in everyday life to test the pH of substances like pool water or garden soil.
Learn more about Acid and Base Experiment here:
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Answer:
The pH of water is 7 because it contains an equal amount of H+ and OH- ions.
Explanation:
True
False
2. The air is composed mainly of oxygen.
True
False
3. People have walked on the moon but not on Mars.
True
False
4. A very small percent of the world's population produces the majority of the world's food.
True
False
5. DDT is an ideal pesticide.
True
False
6. Today's world population remains fairly constant since some countries experience growth, while others are declining.
True
False
7. Petroleum requires millions of years to form.
True
False
8. A nation's industrial growth is independent of its transportation system.
True
False
9. Orbiting satellites use geothermal energy panels.
True
False
10. Because of the weightless conditions of space flight, astronauts do not need to exercise during missions.
True
False
11. Continental shelves are nearly thirty-five thousand feet deep.
True
False
2. False
The air is a gaseous mas that is composed of numerous different gasses. Some of the gasses that are present in the air are the nitrogen, oxygen, carbon dioxide, ozone, sulfur dioxide, water vapor etc. The oxygen though it is not the most common gas in the air. The most common gas in the air is actually the nitrogen, representing the majority of the gas composition of the air, and having higher percentage than all of the other gasses combined together.
3. True
There has been numerous space explorations in the past half a century, and multiple things have been discovered and there's constantly new things that are discovered. The people have always had passion about exploring the space and so they started doing so once they could. The people also want to go to space and visit and explore some of the space objects, such as the satellites and the planets. While the Moon has been visited once, and weirdly enough never again, the other space objects have not been visited by humans. Not even the closest planet to Earth, Mars, have been visited, though there are efforts made to make this possible very soon.
4. False
The percentage of people that are engaged in agriculture is not small at all, it is actually very large, and the estimates say that it is around 60% on a global scale. That actually puts the majority of the global population to be involved in producing food. This of course differs from nation to nation, and the easiest way to make an assumption about how much of the people in certain nation are involved in production of food, thus agriculture, we just need to see in which development category the nation is. The well developed countries have just 1 or 2%, the developing around 50%, and the less developed around 85% of the population engaged in agriculture.
5. False
DDT is a pesticide that has actually been banned. This pesticide has been very effective when it came to killing off the pests, but the big problem with it was that it was very unsafe for the animals and humans. The DDT manged to easily store into the fats of the fish, birds, and other animals. The humans often eat these animals, and the DDT is extremely toxic, and it can even result in death if an animal has stored more of it and has been consumed later on, thus it is far from the perfect pesticide.
6. False
The world population is not remaining constant nowadays, but it is actually still on the rise. Even though the more developed countries and partially the developing countries have much decreased birth rates, the other part of the developing countries, and especially the less developed countries have very high birth rates. The birth rates in these countries are so high that they still cause rise of the world's population. The growth is slower than before, and it is expected to constantly slow down, but for the time being there's still some growth going on.
8. False
The industrial growth of a nation depends on multiple factors, and one of the biggest ones is the transportation system. The transportation system is crucial for the development and growth of the industry. It is the factor that enables the materials to reach the industry, and it is the one that transports the final products to the market. The good transportation system manages to lower the costs and increases the speed of delivery in both ways, thus making it a vital component of the industrial growth.
9. False
The orbiting satellites do not use geothermal energy panels, with the sole reason that it is simply impossible. The satellites, once in the orbit, are using the Sun as their energy source, and for that purpose they use solar panels. The solar panels are made out of very small, numerous, solar cells that are made out of silicon. The silicon is a material that manages to harvest the solar energy, to turn it into electrical energy, and thus provide the satellites with energy so that they can function nonstop.
11. False
The continental shelves are the part of the oceans that is bordering the land masses. This part of the ocean is very shallow. It is also relatively flat and the angle of its fall is very small. The continental shelves tend to be deep between few cm at their edges and up to 100 meters which is taken as their limit. The continental shelf has the warmest waters of any part of the ocean. It is thriving with marine flora and fauna, as it is the part where the sunlight manages to penetrate through most of it. The humans also see it as the most attractive part of the ocean and use it for multiple different recreational activities.
the majority party whip.
the majority party leader.
Answer:
C!
Explanation:
b. prejudice
c. stereotype
d. social role