Diffusion is the movement of a substance from an area of high concentration to an area of low concentration. Diffusion happens in liquids and gases because their particles move randomly from place to place. Diffusion is an important process for living things; it is how substances move in and out of cells.
-Answered by Akki chauhan On 17 September 2019:10:15:13 AM
Question 4.Asked on :15 September 2019:09:47:39 PM
Are you sitting down for this? If not, take a seat. You might notice that you're not falling through the chair or floor. That's because the forces acting on you are balanced. A force is a push or a pull in a given direction. The force of gravity pulling you down against your chair is balanced by the force of the chair pushing up against you.
The forces acting on you as you sit in your chair are just one example of Newton's third law, which states that for every action force there is an equal and opposite reaction force. In fact, all forces come in pairs. No force exists in isolation. That's one of the fundamental symmetries of our universe.
-Answered by Akki chauhan On 17 September 2019:10:15:59 AM
Question 5.Asked on :15 September 2019:12:17:06 PM
Akki chauhan When electricity is passed through a molten compound which is ionic in nature, then the ions of the compound which is ionic in nature, then the ions of the compound separate into its component, thereby decomposing the compond. It is used in separating hydrogen and oxygen gas from water. It is also used to seprate gases or elements
-Answered by Akki chauhan On 14 September 2019:12:42:10 PM
Question 12.Asked on :13 September 2019:05:55:16 PM
The nitrogen cycle is of particular interest to ecologists because nitrogen availability can affect the rate of key ecosystem processes, including primary production and decomposition. Human activities such as fossil fuel combustion, use of artificial nitrogen fertilizers, and release of nitrogen in wastewater have dramatically altered the global nitrogen cycle. Human modification of global nitrogen cycle can negatively affect the natural environment system and also human health
-Answered by Akki chauhan On 13 September 2019:09:56:09 AM
Question 16.Asked on :11 September 2019:11:23:02 AM
-Added by priyanshu kumarScience » Translation Aur Plastic
Akki chauhan There are two main types of fabrics: natural and synthetic. Natural fabrics such as wool, cotton, silk, and linen are made from animal coats, cotton-plant seed pods, fibers from silkworms, and flax (fiber from the stalk of a plant), respectively.
-Answered by Akki chauhan On 11 September 2019:11:17:11 AM
Question 30.Asked on :11 September 2019:10:24:49 AM
Akki chauhan The tiny pores or openings present under the leaves of the plants is called stomata. Two functions of stomata: (i) It helps in breathing of the plants. (ii) It helps in exchange of gases which takes place inside the plant cells.
-Answered by Akki chauhan On 11 September 2019:11:38:01 AM
Question 45.Asked on :10 September 2019:09:49:14 AM
Akki chauhan Curd and other sour substances contain acids, Therefore when they are kept brass and copper vessels, the metals react with acid. To liberate hydrogen gas and harmful products, thereby spoiling the food.
-Answered by Akki chauhan On 08 September 2019:11:02:57 AM
Question 55.Asked on :07 September 2019:08:49:15 AM
Petroleum refining processes are the chemical engineering processes and other facilities used in petroleum refineries to transform crude oil into useful products such as liquefied petroleum gas, gasoline or petrol, kerosene, jet fuel, diesel oil and fuel oils.
-Answered by Akki chauhan On 06 September 2019:08:26:17 PM
Question 65.Asked on :06 September 2019:03:49:57 PM
Master Purushottam A fossil fuel, petroleum is formed when large quantities of dead organisms, mostly zooplankton and algae, are buried underneath sedimentary rock and subjected to both intense heat and pressure. Petroleum has mostly been recovered by oil drilling (natural petroleum springs are rare).
-Answered by Master Purushottam On 06 September 2019:06:25:07 PM
Question 67.Asked on :06 September 2019:03:44:39 PM
derived from petroleum. Some chemical compounds made from petroleum are also obtained from other fossil fuels, such as coal or natural gas, or renewable sources such as corn, palm fruit or sugar cane. The two most common petrochemical classes are olefins and aromatics.
-Answered by Akki chauhan On 06 September 2019:08:03:36 PM
Question 68.Asked on :06 September 2019:03:43:24 PM
Akki chauhan Coal tar is used in medicated shampoo, soap and ointment. It demonstrates antifungal, anti-inflammatory, anti-itch, and antiparasitic properties. It may be applied topically as a treatment for dandruff and psoriasis, and to kill and repel head lice. It may be used in combination with ultraviolet light therapy
-Answered by Akki chauhan On 06 September 2019:08:03:46 PM
Question 69.Asked on :06 September 2019:03:43:40 PM
-Added by Pragya🥰 Choudhary Science » Global Warming
Akki chauhan Global warming refers to global averages, with the amount of warming varying by region. Since the pre-industrial period, global average land temperatures have increased almost twice as fast as global average temperatures.
-Answered by Akki chauhan On 06 September 2019:08:04:08 PM
Question 71.Asked on :06 September 2019:03:41:34 PM
Akki chauhan Petroleum was formed from dead organisms that got buried in the sea millions of years ago. ... Lack of air, high temperature, and high pressure transformed these dead organisms into petroleum and natural gas.
-Answered by Akki chauhan On 06 September 2019:08:05:36 PM
Question 73.Asked on :06 September 2019:03:39:21 PM
-Added by Pragya🥰 Choudhary Science » Force And Pressure
Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure is the pressure relative to the ambient pressure. Various units are used to express pressure.
-Answered by Akki chauhan On 06 September 2019:08:05:59 PM
Question 74.Asked on :06 September 2019:03:37:18 PM
-Added by Pragya🥰 Choudhary Science » Micro -organisms
Master Purushottam 1)We should not take dose of antibiotics. 2)Antibiotics should not be taken empty stomach. 3)We should complete the dose of antibiotic as advised by the doctor. 4)We should take antibiotic only after consulting a doctor.
-Answered by Master Purushottam On 06 September 2019:06:28:01 PM
Question 75.Asked on :06 September 2019:03:37:16 PM
Nishant Verma This movement of energy between the two forms is what causes the oscillation. Eventually, any physical oscillator stops moving because of friction. To keep it going, you have to add a little bit of energy on each cycle. In a pendulum clock, the energy that keeps the pendulum moving comes from the spring.
-Answered by Nishant Verma On 06 September 2019:02:52:56 PM
Question 79.Asked on :06 September 2019:01:22:42 PM
A pendulum is a weight suspended from a pivot so that it can swing freely. When a pendulum is displaced sideways from its resting, equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position.
-Answered by Nishant Verma On 06 September 2019:02:53:46 PM
Question 80.Asked on :06 September 2019:01:20:36 PM
Nishant Verma Shearing (physics) From Wikipedia, the free encyclopedia. Shearing in continuum mechanics refers to the occurrence of a shear strain, which is a deformation of a material substance in which parallel internal surfaces slide past one another. It is induced by a shear stress in the material
-Answered by Nishant Verma On 05 September 2019:05:41:30 PM
Question 84.Asked on :05 September 2019:05:32:41 PM
Harshita Rathore Rearing of sheep means to look after the sheep by providing them food, shelter and health care. breeding is done to obtain animals with desired characters . ... these are then crossed [ made to reproduce ] to obtain new breed of the animals having desirable characters of both parents . this is called