Q1: Discuss the factors which affect evaporation. Ans: Evaporation is the process by which liquid changes into vapour at temperatures below its […]

Q1: How do biotic and abiotic factors affect crop production?Ans: Living organisms such as honey bees and earthworms aid improve crop

Q1: Explain how sound is produced by your school bell.Ans: The sound of the bell depends upon the vibration of the

Q1: When the work is said to be done?Ans: When a force acts on an object and moves it in the

Q1: What do you mean by free fall?Ans: It is the object falling towards earth under the influence of attraction force

Q1: An object experiences a net zero external unbalanced force. Is it possible for the object to be traveling with

Q1: Distinguish between speed and velocity.Ans: Speed of a body is the distance travelled by a body  per unit time while

Q1: Who discovered cells, and how?Ans: Robert Hooke, an English scientist, discovered cells in 1665. While examining a tiny slice of

Q1: On the basis of Thomson’s model of an atom, explain how the atom is neutral as a whole.Ans: As per