CBSE TEST PAPER-02 CLASS - IX BIOLOGY (Improvement in food Resources) 1. Weeds affect the crop plants by – (a) Killing of plants in field before they grow. (b) Dominating the plants to grow. (c) Competing for various resources of crops (plants) (d) All the above. 2. ‘Operation Flood’ in India refers to – (a) Controlling floods during rainy season. (b) Increase in milk production by development of co-operative dairy on a large scale. (c)Increase in fish production during floods.
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CASE 3 Salesforce 1. How does Salesforce.com use cloud computing? Cloud computing refers to the use of different software applications over the Internet. Salesforce.com provides CRM and other software applications using the software-as-a-service business model over the Internet‚ which eliminates the need for companies to heavily invest in up-front hardware and software and reduces the time to implement new programs and maintain them. Subscribers to Salesforce.com only are required to
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Sonia’s smoothies 1) Nick calculated that of 200 customers who completed the questionnaire at the rock festival‚ the mean age was 23. The age distribution conformed to a curve of normal distribution with a standard deviation of 5. Calculate the number of customers aged 33 and over who featured in Sonia’s survey (33-23)÷5 = 2 2% of 200= 4 Answer= 4 2) With reference to the report on the UK smoothie market (appendix 2) analyse two limitations of using secondary sources as the
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The purpose of lab number thirteen was to examine the response of the daphnia to a chemical stimulant. Also examined was how human resting heart rates differed from the daphnia’s. Stimulants are any substances that raise the levels of activity in the body. Stimulants could be a number of things such as physical or chemical. Physical stimulus usually deal with something that affects the five senses such as sight‚ hearing these could be attributed to loud noises or too much light going into your eye
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Problem What effect does the different concentration of hydrochloric acid have to the rate of diffusion of agar that is dissolved with sodium carbonate and phenolphthalein? Introduction Diffusion is a process where the molecules intermingle as a result of their kinetic energy of random motion and is the net movement of like molecules down their concentration gradient‚ which is the energy inherent in their constant molecular motion makes them collide and careen outward from the region of higher
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Conor Westerman LAB 7 1. List whether the student was positive or negative for each characteristic and include whether the characteristic is dominant or recessive. (6 points) a. Blood type A+ b. Widow’s peak yes‚ + c. Free ear lobes yes‚ + d. Tongue rolling yes‚ + e. Hitchhiker’s thumb yes‚ + f. Left thumb dominance yes‚ + g. Little finger bend No‚- h. PTC taster yes‚ + i. Mid-digit hair no‚ - j. Facial dimples yes‚ + k. Freckles no‚ - l. Cleft chin no‚ - (+)=dominant (-)=recessive 2. Can the student
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will broaden range &may increase melting point Lab Questions 1. Define the following A. Melting point B. Intermolecular forces C. Hydrogen bonding 2. Arrange the following IMF according to there strength Dipole-Dipole interaction forces‚ Hydrogen bonding‚ Van der Waals forces 3. How does the atmospheric pressure affect the melting point? 4. What is the purpose of determining the melting point in this lab? 5. Why is this method not used for finding the melting
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the weight hanger and again record the actual vertical scale reading. 5. Repeat this procedure for 10‚ 15‚ and 20 g added to the weight hanger. 6. To determine the force‚ F‚ needed to displace the spring‚ measure each of the slotted masses‚ individually‚ then convert the sum of the added masses to a weight in dynes (see lab manual for conversion). 7. The extension of the spring‚ x‚ is found by subtracting the vertical scale reading in each case from the equilibrium position reading.
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applied loads‚ shearing forces‚ confinements and drainage conditions. Throughout this report we will describe and define the various analyses used‚ our expected versus actual results‚ some of the sources of the inherent inaccuracies and errors‚ as well as the final shear strength of the soils samples provided. 2. PROCEDURE The four laboratories as outlined above were carried out as per the provided McMaster University 2007 Civil Engineering 3B03 Geotechnical Engineering 2‚ Lab Procedures Manual
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Lab Report: Purpose: The Objective of this lab was to learn how to measure the pH (or acidity) of commonly known fluids‚ using the correct tools and procedures. To then use that data to document the changes noticed when mixing those same fluids and changing their respective pH levels. Materials: In order to conduct this experiment several pieces of equipment and other materials were needed. The first item was a graduated cylinder‚ which was used in order to measure out the precise
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