Q3.Answer the following questions in brief:
1. What do we learn from history?
2. What are the units of measuring time? 3.Write any two characteristics of animals.
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Answers
Answer:
1)Studying history helps us understand and grapple with complex questions and dilemmas by examining how the past has shaped (and continues to shape) global, national, and local relationships between societies and people.
2) The base unit for time is the second (the other SI units are: metre for length, kilogram for mass, ampere for electric current, kelvin for temperature, candela for luminous intensity, and mole for the amount of substance). The second can be abbreviated as s or sec.
3)Animals are multicellular. Animals are heterotrophic, obtaining their energy by consuming energy-releasing food substances. Animals typically reproduce sexually. Animals are made up of cells that do not have cell walls.
Explanation:
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Answer:
1) Studying history helps us understand and grapple with complex questions and dilemmas by examining how the past has shaped (and continues to shape) global, national, and local relationships between societies and people.
Q2) a) A second is a smallest unit of measuring time.Sixty seconds make a minute and sixty minutes make an hour.
b) Twenty four hours make a day...seven days make a week and two weeks make a fortnight.
Q3 Ans= a) Animals move to find food and for other purposes.
b) Some species of animals lay eggs and their young ones are born out of the egg; whereas animals of some other species give birth to their young ones.