Question

plss solve the given question

Answer 1

after 2 seconds velocity is v
v = u+at
u=0 ,a=-g
v = -2g =-20m/s (downward)
distance covered in 2 second = S
v2 = u2+2aS
u=0 , a=-g
S = v2/2a = 400/20 =20
it has covered 20 m so remaining distance from ground is 200-20 = 180m
now gravity there is no gravity effect so a=0
now we use speed = distance/time
t = d/v
distance = 180 ,velocity = 20
t = 180/20 = 9sec
thus body will take further 9 sec to reach the ground...

Answer 2

Hello Shreya,

a) Phloem tissue as it looks like a connective type tissue.

b)1.)Sieve tube
2.)Phloem parenchyma
3.)companion cells
4.)sieve plate

c) This is found in trunks, stems, branches and so on to transport food materials to each and every parts of plants.

d)1.)sieve tube:-- it transport sugar over a long distance.

2.)Phloem parenchyma:--It store food materials.

3.)Companion cells:--Regulates the activity of adjacent sieve element.

4.)Sieve plate:--It protects phloem sap from intruding animals by blocking flow of the phloem cells is damaged.

Hope it will help you!
Thanks!