Read the excerpt from A Black Hole Is NOT a Hole by Carolyn Cinami DeCristofano. Most of the time gravity seems to work the way Newton described it. Newton's rules explain a lot, from falling apples to most planets' orbits. But his laws don't work perfectly. In high-gravity zones, Newton's ideas don't jibe with what scientists observe. For example, Mercury's orbit—up close to the Sun—has a blip in it that Newton's laws can't explain. Glitches like this one were the reason Einstein worked so hard at coming up with a new explanation. He wanted to account for everything. His ideas about curving space may sound bizarre, but they work! They took care of the gaps in Newton's theory and explained Mercury's orbit. They led scientists to predict shifting starlight and black holes. All of this is powerful evidence that Einstein was on to something. However, in day-to-day experience, the strangeness of Einstein's ideas doesn't help us, and Newton's notions do just fine. In everyday life, when gravity isn't especially intense, Newton's and Einstein's ways of thinking lead to similar results. The two explanations work like different languages that express the same thing. Is an apple red (English) or rojo (Spanish)? It's okay to use either description. Which detail should be left out of a summary of the excerpt? Newton’s rules explain a lot, but they do not work in high-gravity zones. Einstein’s ideas about curving space help explain gaps in Newton’s laws. Both Newton’s and Einstein’s ideas can work in different circumstances. Newton’s and Einstein’s ideas are like the word “red” in English or Spanish.
Answers
d) Newton’s and Einstein’s ideas are like the word “red” in English or Spanish.
Explanation:
- "In everyday life, when gravity isn't especially intense, Newton's and Einstein's ways of thinking lead to similar results". The two explanations work like different languages that express the same thing. Is an apple red (English) or rojo (Spanish)?"
- In the above paragraph the author has already mentioned in the previous line that is, " The two explanations work like different languages that express the same thing", is similar/same as the line "Is an apple red (English) or rojo (Spanish)?" So when writing the summary we shall not include this detail ("The two explanations work like different languages that express the same thing",) and we need to include the detail "Newton’s and Einstein’s ideas are like the word “red” in English or Spanish" as the detail
- "The two explanations work like different languages that express the same thing" already includes and conveys the information. When writing a summary for any text, we must be able to distinguish main ideas from those parts which are less important & to include only those important information.
- Answer D. It helps readers to have better understanding of the text, however it is not an essential part of the text itself.
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https://brainly.in/question/4011784
Answer:
In this chapter, the writer raises an issue towards the deteriorating health of the earth. As human beings have been exploiting natural resources from decades, presently the condition has made the environment critical. In 1972, the Green Movement helped environmentalists to raise awareness about the harmful condition of the earth and since then there has been no looking back as the movement has been successfully educating people about the conservation of the environment.
Earth is like a patient whose health is declining and it is our duty to improve it. In 1987, the term Sustainable Development was used by the World Commission on Environment and Development. A zoo in Lukasa, Zambia has a cage in which a sign reads ‘The World’s most dangerous animal’ and inside there is a mirror. It gives a message that human beings are the most dangerous animals. Brandt Commission raised a question “Are we to leave our successors a scorched planet of advancing deserts, impoverished landscapes and ailing environment?”
There are four principal biological systems that form the foundation of the global economic system - fisheries, grasslands, forests, and croplands. These four systems also provide food and raw materials for industries except for minerals and synthetics. With these systems becoming unsustainable, fisheries will collapse, the forest will slowly disappear, grasslands will turn into a barren wasteland and croplands will become worse.
In poor countries, forests are being cut down for fuelwood which is used for cooking purposes. There are some areas where the cost of fuelwood is more than the cost of food. It is leading to deforestation at an alarming rate.
One of the reasons for the exploitation of the environment is the increasing population. It is observed that about one million population is increasing in every four days. This is not a good sign. There is an urgent need to control overpopulation in the world. Development is the best contraceptive for this problem as it will help in reduction in fertility, increase in education and income and improvement in health.
We must see the world as a whole and not as dissociated parts. It is a holistic and ecological view. According to Lester brown, we have not inherited the earth from our forefathers but we have borrowed it from our future generations.
Explanation: