GA-Adding Sentences

(1) The bicycle is one of the most efficient and eco-friendly modes of transportation available today. (2) According to cyclist advocate and environmentalist David Byrne, “The bicycle is a simple solution to some of the world’s most complicated problems.” (3) Bicycles can be used for commuting, leisure, or exercise, making them a versatile choice for people of all ages. Roberto wants to include a supporting detail. Which of these sentences below should he add after sentence 1?

• Cars are a major contributor to air pollution, releasing harmful emissions that negatively impact both the environment and public health.
• Riding a bike not only reduces carbon emissions but also promotes physical fitness and overall well-being.
• Bicycling is a much cheaper alternative to driving a car, as it eliminates the costs of gas, insurance, and regular maintenance.
• Bicycles help solve problems like traffic congestion, pollution, and the lack of affordable transportation options in urban areas.

(1) One of its most important functions is regulating the planet’s temperature by absorbing and distributing heat across the globe. (2) In fact, the ocean absorbs more than 90% of the excess heat generated by greenhouse gas emissions, which helps prevent drastic increases in atmospheric temperatures. (3) Furthermore, it serves as a major driver of weather patterns, influencing everything from rainfall to hurricanes. (4) In addition to moderating temperatures, the ocean acts as a primary carbon sink, capturing nearly a third of human-caused carbon dioxide emissions and thereby helping to mitigate the effects of climate change. (5) Without the ocean’s natural ability to regulate temperature and absorb carbon, the planet would experience more extreme temperatures, unpredictable weather events, and accelerated global warming. Rita needs to improve the introduction of this paragraph. Which sentence should be added before sentence1 to create a more effective introduction for this essay?

• Oceans cover more than 70% of the Earth’s surface, making them the largest habitat on the planet.
• The ocean helps regulate temperature and plays a role in carbon absorption, but other factors like land use and deforestation also impact climate stability.
• The ocean is a critical component of Earth’s climate system and plays an essential role in maintaining global stability.
• The ocean is home to a diverse range of marine life, from tiny plankton to massive whales.

(1) One of the most notable effects of climate change in the Arctic is the loss of sea ice. (2) Polar bears, which rely on sea ice for hunting seals, have been particularly affected. (3) Without access to sea ice, polar bears are forced to travel farther and expend more energy searching for food. (4) Scientists estimate that if current trends continue, two-thirds of the world’s polar bears could disappear by the end of this century. (5) Many Arctic indigenous communities rely on hunting, fishing, and foraging as primary food sources, but these activities are becoming increasingly difficult due to environmental changes. (6) As sea ice melts, species like seals and fish migrate to different areas, making traditional hunting grounds less accessible. (7) This forces communities to travel farther or adapt their methods, putting a strain on both their physical resources and cultural practices. (8) Furthermore, the changing landscape is leading to coastal erosion, which threatens villages and forces some communities to relocate. (9) These disruptions not only endanger food security but also erode the cultural heritage tied to living off the land and sea. Charlie is considering adding this sentence to his essay. Charlie is considering adding this sentence to his essay. "Environmental changes are an issue that is becoming more serious, and needs to be addressed by the general public, because ice is melting at an alarming rate." Where is the best place to insert this sentence?Where is the best place to insert this sentence?

• Before sentence 4
• Before sentence 5
• Before sentence 6
• Charlie should not add this sentence.

(20) Drusdon’s team formulated their hypothesis after closely examining mammoth bones, where they observed rodent tooth marks and holes made by scavenger beetles. (21) Researchers determined that these holes and tooth marks on the bones served as evidence that the bones were not immediately covered by soil or water; rather, they had been exposed to the elements for a long period of time. (22) The undernourished state of the mammoths appears to lend support to Drusdon’s theory of drought. (23) Additional tests also indicated that the mammoths perished during a cooler period in central Texas, roughly about seven degrees cooler on average than today.(24) Even though not all researchers endorse this leading theory about the fate of the Waco mammoth herd, it is one of the most highly respected hypotheses regarding the animals’ fate. Mario would like to add another detail in the fifth paragraph (sentences 20–24). Where is the best place to insert this sentence? "In fact, Drudson's theory is something that his being proven with more evidence and tests."

• After sentence 20
• After sentence 22
• After sentence 23
• After sentence 24

(1) Coral reefs are vibrant ecosystems that rely on the delicate balance of various sea creatures and plants working together. (2) Many animals cling to the coral walls, blending in so seamlessly that they appear to be part of the reef itself, providing both camouflage and protection from predators. (3) Sea cucumbers and protozoa contribute to this environment by keeping plant algae and sand anchored in place, preventing them from drifting away with the tides and ensuring the reef remains stable. (4) Adding to the reef’s allure, sponges and soft coral, along with vibrant red and purple plant algae, create a dazzling array of colors that attract other marine life. (5) These colorful additions not only enhance the visual beauty of the reef but also play a role in supporting its biodiversity. (6) Together, the intricate interactions among these animals and plants sustain the reef’s health and preserve it as one of the ocean’s most diverse and stunning habitats. Which of the following sentences should be inserted after sentence 3?

• The delicate structure of the reef makes it susceptible to damage from human activities like fishing and boating.
• Sea creatures such as fish and crabs often visit the reef to feed and find shelter.
• The ocean currents can sometimes wash away loose debris, which helps maintain the reef’s clarity.
• Without these small yet essential creatures, the movement of sand and algae could smother coral and disrupt the habitat for countless species.