Answer:
Knowledge gain through observation and experimentation.
Explanation:
Science is the systematic study of the structure and behaviour of the physical and natural world through observation and experiment. That knowledge which can be gain through observation and experimentations is considered as scientific knowledge and those knowledge which can be attain through other sources not observation and experiments is known as non-scientific knowledge so we can say that observation and experiments provide scientific knowledge.
Answer:
Generaly a heart weighs 300g in males and 200g in females. In any case if there is difference in weight i.e increase in the weight of heart the blood pumping capacity decreases due to over weight resulting in the decrease in number of beats.
Explanation:
The answer is “A”
It is a polar and covalent compound.
Answer : Mitosis for growth and repair while Meiosis for reproduction
The answer for that is c because there are greater proportion of mountains land and in the southern hemisphere