Choose the correct answers to the questions from the given options. [15] (Do not copy the question, write the correct answers only.)
Lata wanted to cross the road. She looked on either side of the road and then
walked across to the other side of the road.
Which of the following is / are involved in the process described above?
1. Cerebrum
2. Cerebellum
3. Skeletal muscles
4. Medulla Oblongata

15] Select the correct answers to the questions from the given options. (Do not copy the questions, write the correct answer only).
The structure that lies at the junction of the choroid and the iris and is itself a part of the choroid is called:

15] Select the correct answers to the questions from the given options. (Do not copy the questions, write the correct answer only).
The optimum temperature for photosynthesis is:

Given below is a picture of a tree. Mention the scientific phenomena occurring in the parts labelled (a),
(b) and (c).
(c)
(b)
(a)

15] Select the correct answers to the questions from the given options. (Do not copy the questions, write the correct answer only).
The number of live births per thousand people per year is called:

What are biomedical wastes? Give an example.

State any two harmful effects of acid rain.