General science quiz for grade 4 #shorts

Define science in short.

Development is general and human development in particular is a complex concept used in social science.'' Justify this statement with suitable arguments.

Mr. Dupont is a professional tea taster. When given a high grade tea, he will identify it with probability 0.9 correctly as high grade and will mistake it for a low grade tea with probability 0.1. When given a low grade tea, he will identify it with probability 0.8 correctly as low grade tea and will mistake it for a high grade tea with probability 0.2. Suppose that Mr. Dupont is given ten unlabelled cups of tea, three with high grade and sevenwith low grade tea. He randomly picks a cup, tries the tea and solemnly says high grade tea. Find the probability that the tea he tasted was low grade tea.

A tyre company is able to manufacture x (hundred) grade A tyres and y (hundred) grade B tyres per day,where y(5-x)=10(4-X),0<=x<=4. If the profit oneach grade A tyre is twice the profit on grade B tyre,what is the most profitable number of grade A tyresper day to manufacture?

Science is a systematised body of knowledge that explains certain general truths or the operation of general laws.' In the light of this statement, describe management as a science.

Write short notes on: (a) General utility breeds of cow (b) Breeds of buffalo.

Electric Field Intensity Due To A Short Dipole At Some General Point

The stage between meiosis-I and meiosis-II is called_____and is generally short lived.