gas emitted by certain fruits (including apples, bananas, melons, and avocados) that causes fruits to ripen. It also causes ripe fruits and vegetables to spoil. fruit gas ethylene gas gas enzymatic browning

Q: Researchers looking for fossils of the earliest life forms face many hurdles. For example, few sedim...

A: Plate tectonics started about 3.2 billion years ago. During this time only vertical motion occurred ...

Q: Answer the following in not less than 3 sentences.  1. How is geologic time scale useful?  2. How is...

A: The geologic time scale is useful because it divides the Earth's history into intervals that are sep...

Q: Ice is melting in the Arctic (this is fact). Do you think that the melt water is salty or fresh?

A:   When saline ocean water freezes into ice, only the water part (H2O) freezes.

Q: Given an example of a region where climate conditions favor physical over chemical weathering and vi...

A:   Physical weathering involves the breakdown or disintegration of rocks and soils through direct con...

Q: Meaning hydrosphere, atmosphere, geosphere etc.

A: There are four spheres that describe different systems of the planet Earth - hydrosphere (water), ge...

Q: What general direction was the Pacific plate moving between 70.7 and 43.4 million years ago?

A: Just after the beginning of the subduction, the subduction zone shifted or started moving towards th...

Q: can you help me cite the "veldt" by Ray Bradbury and "The Lottery" by Shirley Jackson in MLA8 Format...

A: Bradbury, Ray. The Veldt, The Saturday Evening Post, 23 Sept. 1950, repositorio.ufsc.br/bitstream/ha...

Q: Calculate the percent change when a population of 350 birds increases to a population of 500 birds. ...

A: Percent Change= New Population - Old PopulationOld Population × 100Percent Change= 500 - 350350 × 10...

Q: Suppose the following atmosp temperature Altitude (m) Temperature (°C) 20 100 18 200 16 300 15 16 40...

A: Plot the two curves: temperature-altitude the dry adiabatic lapse rate (DALR)  The DALR is the rat...

Q: Define random sampling. Why is it important to use a random sample? How else could randomness be app...

A: The finding or making inference statistically about the whole population of anything from the select...

Q: Gravity is responsible for which of the following characteristics of a galaxy

A:   Every object present in space exerts a gravitational pull on every other object. The gravitational...

Q: Because of environmental degradation, water scarcity is becoming a big problem. Identify one effecti...

A: The deterioration of the environment because of the depletion of various resources like air, water, ...

Q: In Section 24-2, you learned how Neptune is different from Uranus, and how its rings and moons forme...

A: Neptune is similar to Uranus as far as size, mass, composition, and interior structure. - True  

Q: A satellite is in circular orbit around Earth at an altitude of three Earth radii above the surface....

A: Orbital velocity (vorbit) = GMR  where, G is the gravitation constant = 6.6743 x 10-11 m3 kg-1 s-2 ...

Q: Top three (3) countries where forest are actually growing back (where there is a net gain in forest ...

A: The planting of trees to develop forest and growing forest back after the deforestation is known as ...

Q: Using the equation bank below, what chemical equation matches the model? e. FeS+ 2HCI f. Na + Br2 a....

A: The model shows that on the left-hand side of the chemical reaction is a compound that has two yello...

Q: 1. What environmental process can we conclude from the characteristics of rocks? ( referring to the ...

A:   When hot molten magma undergoes cooling and solidification deep inside the earth or on earth surfa...

Q: what is the charateristics cleavage of mica ?

A: The mineral made up of silicate sheets is known as mica. Mica is used in products like drywall, pain...

Q: Looking at the map, where are most of the hotspots concentrated? Many of the biodiversity hotspots c...

A: The location of all major biodiversity hotspots shown on the map has one thing in common - their loc...

Q: Which of the following is most likely to cause primary succession? a glacier covering a valley and m...

A:   Succession is progressive changes in the composition of an ecological community with time. In prim...

Q: What is the elevation difference between Smith Park and Fuller Park, near the western edge of the ma...

A: On the map, first, identify the location of both parks. In the map above, the blue arrow represents...

Q: Will you allow installation of solar power plants in areas that are plains and receive a considerabl...

A: The purpose of any power plant is the generation of electricity. The primary requirement of installi...

Q: What would be the size of a black hole that contained as much mass as a planet 10 times more massive...

A: The size of a black hole can be estimated by using the Schwarzschild radius calculation: rs = 2GMc2w...

Q: Where should you build a nuclear waste

A: Nuclear energy is a clean, readily available, and most powerful source of energy on the planet. Prod...

Q: what happen if we fail to protect rain forest and old growth forest

A:   The old growth forest and tropical rainforests are highly valuable from ecological point of view. ...

Q: An underground aquifer near Seiling, Oklahoma, sits on an impermeable layer of limestone. West of Se...

A: In the figure above, A, B and C represent the sample wells drilled 2, 3 and 5 miles to the west of S...

Q: 19. Match cach depositional environment with the description of sedimentary rocks that would likely ...

A: 1 H

Q: What effects does the surface-wind pattern have on the circulation of the oceans? Why do ocean curre...

A: The movement of the ocean occurs along the ocean's surface in predictable ways. The two types of cir...

Q: Alkali metals reacting with water, what is the sign for AH"? O Negative O Zero O Positive

A:   The heat that passes into the system or out of the system during a reaction is the enthalpy change...

Q: (Not a writing assignment, just a question) Why does the operation of a solid waste landfill create ...

A:   Most of our waste is toxic. Many of the solid waste contains dangerous substances such as volatile...

Q: 2. Rising seas inundate land, compounding coastal erosion problems outlined above. Calculate how muc...

A: The level of inundation due to a rising  sea-level can be calculated as: Change in Horizontal Distan...

Q: d Ridge plantng Which of the following sot of vegetables are directly planted in the field? a Eogpia...

A: Answer to Question 1 C. Hill-planting

Q: How many minutes elapsed between the arrival of the first P wave and the last measurable surface wav...

A:   A seismogram records the vibrations caused by an earthquake at a specific measuring station. It sh...

Q: Realization in learning the history of the Earth? In 2 - 3 sentences.

A: The most important realization in learning earth's history comes from the fact our planet is a const...

Q: as viewed from Earth, how many times does the moon rotate during one

A:   The moon's rate of spin is synchronized with its rate of revolution (revolution is the time requir...

Q: list the five most important features of your energy policy

A: Energy policy is described as a decision of a government for addressing the problems regarding the d...

Q: What are bold actions in rogue wave?

A: Rouge waves are created in the area where the action of the wind is very strong. These form against ...

Q: Assume the speed of sound in ocean water is 4800 ft/sec. An echo sounder releases a sound pulse at t...

A: The echo sounder is a kind of SONAR that is used for determining the depth of water by the use of so...

Q: Name one glacier on Greenland  that did not lose the area from 2009 to 2010. Explain how you know an...

A: Freya (also called Freja) glacier, located on the northeastern coast, is one glacier on Greenland th...

Q: What is the straight line distance from the intersection Main and Water to the intersection of Summi...

A: Step 1: Locate the two points of intersection and draw a straight line between them In the map abov...

Q: fill the blank with the word 'cosmological redshift' or 'doppler shift'   A         ?         occurs...

A: A variation in the wavelength or frequency of a photon having non-zero radial velocity according to ...

Q: Why are pioneer necessary for a new ecosystem in an area that never had one ?

A: The geographic area containing living creatures like plants, microorganisms, and animals and abiotic...