Question

Q-1 Choose the correct option from the options given below for the following statements. (6) 1. What physical state of matter it has a define shape? (A) Liquids and gases (B) Liquid (C) air (D) solid 1 2. Which of the following substance acts as a pure substance? (A) Sodium chloride (B) Cold drink (C) Aerosol (D) Clay 1 3. Which of the following pair is not true? (A) Calcium-Ca (B) Silver-Ag (C) Gold-Au (D) Copper-Co 1 4. Most of the mass of an atom is contained in ________. (A) Protons (B) Electron (C) Center (D) Neutrons 1 5. Which of the following mixtures is not a solution? (A) Sea water (B) air (C) Soda water (D) Coal 1 6. Which tissue is an involuntary muscle with linear stripes? (A) Skeletal muscle (B) Smooth muscle (C) Heart muscle (D) Fiber component muscle 1 Q-2 Fill in the blanks so that the following statements are true. (6) 1. _________ is not an animal of the arthropod group. (Ginga, Butterfly, Leech) 1 2. If an object moves at a constant speed of 10 m s-1 on a circular path with radius r, then the object moves _________. (Constant velocity, acceleration, constant acceleration) 1 3. When force is applied to an object, its _________ is not affected. (mass, shape, velocity). 1 4. The initial velocity of a free falling object is ________.(More, 9.8 m s-1 , zero) 1 5. Sound waves cannot propagate from _________. (Glass, water, vacuum) 1 6. Tuberculosis is a disease caused by _________. (Viruses, parasites, bacteria) 1 Q-3 Write the following statements true or false. (4) 1. Influenza is a disease of the respiratory system. 1 2. During the day the wind speed is from land to sea. 1 3. Urea is a nitrogen nutrient. 1 4. Inertia is a scalar quantity. 1 Q-4 Answer the following questions as requested. (8) 1. Which diseases are more likely to be caused by breathing in polluted air?​

Answer 1

Answer:

Liquid

Cold drink

___________