Skept in phylum e) Polar diameter of the earth is...
[5]
a) In CGS system, length is measured in centimetre.
b) Unit for measuring force is gram.
c) Green plants cannot prepare their own food.
d) Earthworm is an example of phylum annelida.
e) Land in mountain region is fertile and suitable to grow crops.
[5]
eging
3. Match the following.
Group - A
86400s
Kerosene
Monkey
Annelida
Crust
Group - B
arboreal
earthworm
one day
outer thinnest layer of earth
combustible
en
[3x2=6]
4. Write a difference between:
a) Rest and motion
b) Monocotyledons and Dicotyledons
c) Element and Compound
[4x2=8]
5. Give reasons.
a) The motion of a pendulum of a clock is called oscillatory motion. Why?
b) A steel plate is opaque,
c) Housefly is not a bird though it flies. Why?
d) Valleys have dense population but plateaus do not have dense population. Why?
[8x2=
2. State whether the following statements are True or False.

Which statements describe the relationship between science and society? check all that apply. science is influenced by the needs of society. science and society are independent. science seeks ways to meet the needs of society. scientists find new ways to address societal concerns. scientists improve existing products.

In the nineteenth century, gregor mendel first determined some basic rules of genetics that have been observed throughout all types of life. no observations have disproved these basic rules of genetics. charles darwin developed the idea of biological evolution around the same time, but he was unaware of mendel’s discoveries in genetics. over a century later, darwin’s idea of evolution was modified in order to incorporate mendel’s rules of genetics along with the other evidence that darwin had used. what is most likely the relationship between mendel’s rules of genetics and darwin’s idea of biological evolution? a.)mendel’s genetics states laws that are now part of the theory of biological evolution.b.)biological evolution states laws that are part of mendel’s theory of genetics.c.)mendel’s genetics replaced darwin’s entire concept of biological evolution.d.)biological evolution is a law that explains why all genetics exist.

Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.