Figure 18.1 A sewage spill closes beaches near San Diego, DANGER California. CONTAMINATED WATER KEEP OUT em the eB esubseqai Rick Doyla/Encyclopadia/Corbis

Q: What are the deepest parts of the ocean? Options: deep-sea trenches mid-ocean ridges giant whale nes...

A: Deep-sea trenches or ocean trenches are long, narrow zones of ocean collision. They are 7 to 11km de...

Q: What were the most prominent groups of swimming predators in Cretaceous seas?

A: Fossils are the preserved remains or the traces of past life and their activity. With the help of fo...

Q: The planets of the inner solar system within the orbit of Earth are not likely candidates for life t...

A: By reviewing the question, We need to give the correct reason from the given options The planets of ...

Q: The solar wind directs the gas tail of a comet   a. outward, away from the sun at all times. ...

A: The solar wind (SW) is a course of plasma and particles gently flowing from the day star into space,...

Q: Of the following factors, the one that is a part of the Drake equation is the   a. temperature o...

A: According to the Drake equation, that permits the calculation of the total number of capable civiliz...

Q: Explain in detail the mechanisms by which soil organic C reduces soil erosion.

A: Soil is the uppermost layer of Earth, which is a mixture of minerals, organic matter, gas, water, et...

Q: Why are massive main-sequence stars NOT likely to have planets that contain life?   a. The life ...

A: By reviewing your question, We need to find out that why are massive main-sequence stars not likely ...

Q: What are the inferred pressure and interior temperature at the boundary between Earth's outer core a...

A: The study of the propagation of seismic waves through the internals of the earth lead to provide inf...

Q: Describe, with examples, four lines of evidence forevolution.

A: The earliest theory of evolution is considered to be the Lamarck's theory of evolution in the early ...

Q: What is the answer of this question?

A: Earth is the third planet in the solar system, which is a gravitationally bound system around the su...

Q: At present, life on Earth is believed to have begun   a. near the south pole.   b. on the co...

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Q: the dust bowl prompted the U.S to fight erosion a. true b. false

A: In the geological time scale, many physical processes shape the earth's surface. The processes are t...

Q: Answer question 1, 2 showing fully all the steps. Solution should be simplified and easy to understa...

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Q: What is soil and why it is a valuable earth resource?

A: By reviewing the question, We need to find What is soil and why it is a valuable earth resource? Bel...

Q: below is a diagram of the house receiving 90° direct insolation.. at which latitude would this house...

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Q: What is the extent of the economic damage of Rice Weevil?

A: The insects that are found in the stored product are called rice weevils. These are mostly available...

Q: n provide your own quotation about conservation of energy.

A: If we see from environmental point of view, reducing energy limits the carbon emission in the enviro...

Q: What is the importance of studying the soil?

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Q: What is the main objective of the Sustainable Development Goals of the United Nations? What is the s...

A: “Since you have asked multiple-sub questions, we will solve the first three questions for you. If yo...

Q: The oldest fossils on Earth   a. show that life began in Africa.   b. show that life began i...

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Q: Define perigee?

A: The nearest point of the moon to the Earth is known as perigee. At this stage, the moon is at a mini...

Q: 1. When Anna went to the Philippines, she experienced a sudden temperature change.What factor affect...

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for yo...

Q: The so-called Drake equation is a formula that attempts to   a. determine the age of the univers...

A: By reviewing the question, We need to find what the so-called Drake equation is a formula that attem...

Q: Which is NOT a feature of deep-ocean basins? Options: mid-ocean ridges seamounts beaches

A: Earth science is the study of the Earth and the various processes that are going on in the Earth sys...

Q: Haley's Comet orbits the Sun with its closest approach between the orbits of Mercury and Venus and g...

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Q: ________________________ shows that the building blocks of life form naturally under a wide range of...

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Q: The most likely region of the radio spectrum for communication with other civilizations is the water...

A: By reviewing the question, We need to find the most likely region of the radio spectrum for communic...

Q: The stars most likely to have inhabited planets are G and K main-sequence stars because   a. the...

A: The habitable planets/ inhabited planets are defined as the planet in which life can go through a de...

Q: Answer question 13 showing fully all the steps. Solution should be simplified and easy to understand...

A: Energy is very essential for human civilization to develop. Energy is required for industries, house...

Q: Processes involving mixing of HCO3- and CO2 into the deep ocean occur on time scales of Group of an...

A: By The review of question We need to find time required for HCO3- and CO2 to mix well into the deep ...

Q: What is Soil?

A: The Earth is made up of four spheres known as lithosphere, atmosphere, hydrosphere, and biosphere. A...

Q: 1. How is acid rain measured? 2. Explain what the D layer is and it's important to human on Earth.

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any ...

Q: 1. Name any three actions that have the potential to generate a tsunami. 2. Now explain how such a t...

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Q: what is this longitude and latitude of mexico?

A: The world map can be divided into east-west lines of longitude and north-south lines of longitude bu...

Q: Why has the garden been so successful?

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Q: What would be (is) the best alternative energy resource for the country of Iceland? Why so? What wou...

A: Energy resources are the sources of energy that is available naturally and have storages at various ...

Q: Toxins are  a. are synthetic only b. natural chemicals in the environment that pose risks c. bleach ...

A: Toxins are harmful for living organisms. The extent of risk varies depending on the type of toxins t...

Q: How is human population growth and environmental health connected? Provide at least three examples.

A: Population growth is increase in number of populations on a regional or global scale and is given by...

Q: List and explain the three principles of habitat restoration.

A: Habitat is degraded by climate change and global warming. This change causes to degradation of the h...

Q: The Green Revolution a. increased food supplies b. increased food security c. increased efficiency d...

A: Agriculture is the art and science of the cultivation of the soil. Several scientific methods and te...

Q: Single stars are most likely to have planets suitable for life because   a. they are the most ab...

A: Single stars are different from other star system and it only comprises of the solitary star, not bo...

Q: Q1- A rock core sample 5.4 cm in diameter and 11 cm high, has a total mass of 0.5 kg , if its porosi...

A: By reviewing the question, We need to find out the volume of voids and unit weight below you can fin...

Q: Why is it believed that life CANNOT evolve on a planet that orbits a spectral type A, B, or O star? ...

A: The evolution of life on the planets needs a long period. The planets that orbit a  spectral type O,...

Q: Describe the heliocentric model of the universe

A: The universe is an expanse of space, containing stars and other heavenly bodies. We cannot measure t...

Q: 1/what type of fault ? 2/what name if middle block? 3/indicate which is the hanging wall?

A: Faults are cracks that have displacement to each other. The displacement is due to the stresses that...

Q: What drives the water cycle? Options: the moon the Sun the magnetic field

A: The sun drives the water cycle on earth.

Q: 1. Which of the following phrases best defines tundra? A a mountainous region outside the Arctic Ba ...

A: Tundra biome is a belt found in extremely low temperature area with very less growing season. In nor...

Q: What would happen if each of these destructive processes were to be applied to the Moon?1. Chemical ...

A: Moon is approximately 345000 kilometers far from the earth. Moon has been discovered with the presen...

Q: What system of planting has the optimum number of permanent plants per unit area?

A: The farming system, which is the system that is based on the method of cultivating the land accordin...

Q: What is the planet Vulcan? Why did scientists think that it existed?

A: The solar system is a gravitationally bound system around the sun. It has 8 planets, their moons, as...