Question

short answers.
1. what a brief note on the tools and weapons of paleolithic age.
2. what do you know about paleolithic sites and paleolithic art ?
3. describe mesolithic age in your own words.
4. write a note on neolithic settlements and the customs and practices followed by the inhabitants there.
5. why is the 'lnvention of wheel' termed as the remarkable invention of the period?​​

I need all the correct answers ​

Answer 1

Answer:

Sclerenchyma tissue, when mature, is composed of dead cells that have heavily thickened walls containing lignin and a high cellulose content (60%–80%), and serves the function of providing structural support in plants. Sclerenchyma cells possess two types of cell walls: primary and secondary walls.

Answer 2

Answer:

for i in range(1, n+1) :

#while loop for * and spaces

x = 1

while x < 2 * i :

if x == 1 or x == 2 * i - 1 :

print('*', end = '')

else :

print(' ', end = '')

x += 1

print()

#lower half

for i in range(n-1, 0, -1) :

#while loop for * and spaces

x = 1

while x < 2 * i :

if x == 1 or x == 2 * i - 1 :

print('*', end = '')

else :

print(' ', end = '')

x += 1

print()