One of the biggest disasters due to climate change has occurred here in California is coral bleaching O ice cap melting O Gulf of Mexico dead zone O kelp forest decline
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- 9. The Deepwater Horizon oil spill ______ the wildlife in the Grand Bay Estuarine ResearchReserve.2N5 1000 S 100 W 10 Regional Plankton Biomass Medyou 1980s 3 1990s Year (Courtesy of NOAA) The graph shows the fluctuating values of regional plankton biomass in three locations off the east coast of the United States. Georges Bank is located off of Cape Cod, the Middle Atlantic Bight is located offshore of Virginia and northern North Carolina, and the Gulf of Maine is located off the coast of New England. Which of the following statements is the most likely reason for the productivity trends seen for the Gulf of Maine? e -Middle Atlantic Bight -Georges Bank-Gulf of Maine d O The area has fewer large predators like sharks. O The area has fewer animals that eat plankton. The area gets hit less by hurricanes so the ocean water mixes less. O The area gets more intense sunlight than the other areas. C 2000s $ 64 + 4 T 2010s r f 49 % 5 t CB 6.0 g 6 EE ▸ y b B & 7 h J n BU ★ 8 ( 9 3 k ✓ Sign out O O US Sep 24 P Submitted Next Activity 6:08 O PAThe _____ cycle is a sedimentary cycle. a. phosphorus b. carbon c. nitrogen d. water
- Global climate change is causing ___ . a. a decrease in sea level b. glacial melting c. acid rain d. all or the aboveDiscovery of Iridium in the KPg Boundary Layer In the late 1970s, geologist Walter Alvarez was investigating the composition of the KPg boundary layer in different parts of the world. He asked his father, Nobel Prizewinning physicist Luis Alvarez, to help him analyze the elemental composition of the layer. The Alvarezes and their colleagues tested the K-Pg boundary layer in Italy and Denmark, and discovered that it contains a much higher iridium content than the surrounding rode layers (FIGURE 16.17). Iridium belongs to a group of elements that are much more abundant in asteroids and other solar system materials than they are in Earths crust. The Alvarez group concluded that the KPg boundary layer must have originated with extraterrestrial material. Sample Depth Average Abundance of Iridium (ppb) +2.7m 0.3 +1.2m 0.3 +0.7m 0.36 boundary layer 41.6 0.5 m 0.25 5.4 m 0.30 FIGURE 16.17 Abundance of iridium in and near the KPg boundary layer. Iridium content of rock samples above, below, and at the KPg boundary layer in Stevns Klint, Denmark. Sample depths are given as meters above or below the layer. ppb, parts per billion. An average Earth rock contains 0.4 ppb iridium; the average meteorite, 550 ppb. The photo shows Luis and Walter Alverez next to the KPg boundary layer in Stevns Klint. How much higher was the iridium content of the boundary layer than the sample taken 0.7 meter above it?Changes in the Air To assess the impact of human activity on the carbon dioxide level in Earth's atmosphere, it helps to take a long view. One useful data set comes from deep core samples of Antarctic ice. The oldest ice core that has been fully analyzed dates back a bit more than 400,000 years. Air bubbles trapped in the ice provide information about the gas content in Earth's atmosphere at the time the ice formed. Combining ice core data with more recent direct measurements of atmospheric carbon dioxideas in FIGURE 46.20can help scientists put current changes in the atmospheric carbon dioxide into historical perspective. FIGURE 46.20 Changes in atmospheric carbon dioxide levels (in parts per million). Direct measurements began in 1980. Earlier data are based on ice cores. 4. Was the rise in the carbon dioxide level between 1800 and 1975 larger or smaller than the rise between 1980 and 2013?
- Changes in the Air To assess the impact of human activity on the carbon dioxide level in Earth's atmosphere, it helps to take a long view. One useful data set comes from deep core samples of Antarctic ice. The oldest ice core that has been fully analyzed dates back a bit more than 400,000 years. Air bubbles trapped in the ice provide information about the gas content in Earth's atmosphere at the time the ice formed. Combining ice core data with more recent direct measurements of atmospheric carbon dioxideas in FIGURE 46.20can help scientists put current changes in the atmospheric carbon dioxide into historical perspective. FIGURE 46.20 Changes in atmospheric carbon dioxide levels (in parts per million). Direct measurements began in 1980. Earlier data are based on ice cores. The industrial revolution occurred around 1800. What was the trend in carbon dioxide level in the 800 years prior to this event? What about in the 175 years after it?lluminate XO X NPS_Q1_Science_Biology_2022-2023 Question 7 Y ▶ Human Activities and Earth's Atmosphere vidence from scientific studies supports the claim that human activities are contributing to the creasing average global surface temperature on Earth as observed for the past 100 years. The oncentration of greenhouse gases in Earth's atmosphere have increased during this time and are ought to be the major cause for changes in global climate Graph 1 represents the relative ntribution of human activities that are likely causing global climate change. Graph 2 represents the ative amounts of various greenhouse gases in the atmosphere. N Burning fossil fuels (49%) Graph 1: Contribution of Human ctivities to Global Climate Change Agriculture (13%) Q Zoom Deforestation (14%) Industrial processes (24%) Illuminate EducationTM Inc. Graph 2: Relative Amounts of Greenhouse Gases in Atmosphere Chlorofluoro- carbons Nitrous (2.7%) Oxide (7.6%) Carbon Dioxide (72.7%) Sulfur hexafluoride (0.4%)…C Clever | Portal e Edcite Q 15 | 2021 SCI_G8_12_MI X A Did you finish your interim? If no A edcite.com/apps/MOElemViewer?assignid%3Dnhaadmin_1611780315611&exid%3Dnhaassessn Use the information below to answer the question. Below is a model that traces the movement of energy and matter within an Amazon rainforest ecosystem. Ocelot Jaguar Carbon dioxide Golden lion tamarin Woolly monkey Long-horned grasshopper Dead-leaf moth Banana plant Bromeliad plant Fungi Oxygen Review / End Test Flag Options This assignment uses a Viewer designed by Edcite to meet the needs of students to pr the state assessment provider. As such, the Edcite viewer may differ 2013-2021 Edcite, In
- rmat Tools Help Last edit was seconds ago Normal text Arial 11 BIUA 川, 三ニ m 、 市▼E + I 1 I 2 I 3 4 6 II7 Necessary Life Functions Scenarios Scenario #1 – Ursula is Drying Out: Ursula is an evil sea witch. She was banished and exiled from Atlantica by King Triton. Atlantica had a low salinity level compared to Ursula's new habitat. Ursula spends all of her time under the sea and the high salinity concentration of the water in her new habitat is drying out her body. How can you save Ursula? Name two body systems that are not in homeostasis in Ursula's body. 1.) 2.) How do Ursula's "insides" remain distinct from Ursula's "outsides"? Explain how this applies to Ursula's whole body and how it applies to her cells?they Which part of your body protects your internal organs from desiccation (drying out), from bacteria, from heat, and from chemical substances? Which necessary life function is described in this scenario? How would you edit this major motion picture to bring Ursula's body back to…C Clever | Portal A Did you firnish your interim? If no x e Edcite Q 14| 2021 SCI_G8_12_MI X A edcite.com/apps/MOElemViewer?assignid%3=nhaadmin_1611780315611&exid%3Dnhaassessmen Use the information below to answer the question. Below is a model that traces the movement of energy and matter within an Amazon rainforest ecosystem. Ocelot Jaguar Carbon dioxide Golden lion Woolly monkey tamarin Long-horned grasshopper Dead-leaf moth Banana plant Bromeliad plant * Fungi Oxygen Review/End Test Flag Options This assignment uses a Viewer designed by Edcite to meet the needs of students to the state assessment provider. As such, the Edcite viewer may diff 2013-2021 Edcitextensions Help Calibri 1 100 1 0 1 J 11 Page 2: Remediating Water Questions U U + B M 1 Page 3: Eutrophication : Questions Cº U IUA 9 3 fs 1. Describe one change in farming practices that can reduce the effects of eutrophication. › » @ QE ✓ Œ = ✓ E • EYE L 1 2. Dead zones are areas in the world's oceans and lakes that are void of life due to low oxygen levels. Explain why dead zones are often located along heavily inhabited coastlines. 3. During heavy rainstorms, sewer systems in some older cities can be overwhelmed with water. This can result in raw sewage being discharged into nearby waterways. What impact might this discharge have on the waterway? 19 4. Explain why the amount of dissolved oxygen in a lake is often considered an indicator of the "health" of the lake. 5. One strategy to reverse the effects of eutrophication in a pond is to install an aeration system. This technology bubbles air into the pond and, in doing so, continually stirs up the surface water so that algal blooms…