Question

SCIENCE
Q1. Answer the following: se potting tien-Ht the translatot
1. Explain self and cross pollination with examples 'Ch= 12 Science =
2. (a) Name the only artery that carries carbon dioxide-rich blood. Palmonare
(b) Why is it called an artery if it does not carry oxygen-rich blood?
3. Name the process and the organ which helps in removing the following wa
(a) Carbon dioxide (b) Undigested food
(c) Urine
4. Why is soil erosion relatively less in dense forests as compared to barren,
COMPUTER
Fill in the blanks with correct words:
5. The angle and length of straight line segments and the
using the Pen tool can be adjusted.
To scale the selected object in two dimensions, drag a corner handle​

Answer 1

1) SELF POLLINATION : pollination that take place within only single flower .

CROSS POLLINATION : pollination that take place within two flowers .

3) a ) Carbon dioxide is removed by Nose .

process called exhaled .

B). Undigested food extracted by ANUS .

process called excretion .

c) Urine removed by penis

process called urinisation.

Answer 2

Answer:

I am only answering the science part. I think the computer question is incomplete.

1. Cross Pollination

Cross pollination is the transfer of pollen grains from the anther of a flower to the stigma of a flower of a different plant of the same species.

Example:apple grapes pear plum

Self Pollination

Self pollination is the transfer of pollen grains from the anther to the stigma of the same flower

Example:wheat barley oat rice

2. (a) Pulmonary artery

(b) Because it carries blood from the heart to all body parts.

3. (a) carbon dioxide

Exhalation, Lungs

(b) undigested food

egestion, Anus

(c) Urine

excretion ,Urethra

4. Because the roots of the trees hold the soil tightly and thus prevents soil erosion.