Question

a. Name the organs that make up the human alimentary canal,
b. What are elements?
c. What are mineral acids?
d. What is thermometer?
e, in which direction does the transfer of heat normally take place?
f. What is speed? Write down in S.I unit,
g. Why do we need to breathe out Co²?
h. What will happen if the xylem tissue gets damaged in a branch of a tree?
1 Why the bottoms of cooking utensils are often kept black?
j.State the role of acid in the human stomach,​

Answer 1

Answer:

a) mouth, oesophagus, stomach, small intestine, large intestine, anus, rectum

b) substances which are made up of single type of atoms only are called as elements

c) inorganic acids such as hcl are known.....

d) an instrument used in measuring body temperature

e) high 0ressure to lower one

f) distance per unit time m/s

g) to remove gaseous wastesfrom our body

h) water conduction will not take place

I) because black colour absorbs more heat

j) kills bacteria and allows inactive pepsinogen to convert into pepsin

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