P-2 Animal Classification — Science STD 10 — Question

Which problems does the common man face due to incidence of cyber crime?

An object is placed at a distance of 10cm from a convex mirror of focal length 5cm.

1. Draw a ray-diagram showing the formation of image.
2. State two characteristics of the image formed.
3. Calculate the distance of the image from mirror.

Which different aspects of disaster management would you check for your school? Why?

Explain the functions of the following parts of the eye:

1. Iris.
2. Pupil.
3. Ciliary.
4. Muscles.
5. Eye-lens.
6. Retina.
7. Optic nerve.

What is meant by an artificial satellite? How are the satellites classified based on their functions?
(OR)
Write the importance of artificial satellites in your words. (Practice Activity Sheet – 3)

There are four organisms A, B, C and D. The organism A eats only the flesh of other animals as food. The organism B can eat grains, fruits and vegetables as well as meat and fish. The organism C can make the food itself from simple inorganic substances present in the environment by utilising sunlight energy. On the other hand, organism D eats only plants and their products as food.

1. Which organism is

1. Omnivore,
2. Herbivore,
3. Carnivore?

2. Which organism is an autotroph?
3. Which organism is/ are heterotroph (s)?
4. Which organism can be a producer?
5. Which organism is/ are consumer (s)?

Give one example each of organisms which could be like A, B, C and D.

Write in brief about progressive changes in animal classification.

With the help of a diagram, derive the formula for the resultant resistance of three resistors connected in series.

(i) Determine the SI unit of the universal constant of gravitation from the formula for the gravitational force between two particles. Hence, state the CGS unit of the constant of gravitation. (ii) Define G (universal gravitational constant)

Write the names of biodiversity hot spots?