Hydrogen atom has
Hydrogen atom has
Four shells | |
One shell | |
Two shell | |
Three shell |
en
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Heat from the sun reaches the Earths surface by
Heat from the sun reaches the Earths surface by
Motion | |
Conduction | |
Radiation | |
Convection |
Which structure is helpful to the pollen grains to carry sperms to the ovary
Which structure is helpful to the pollen grains to carry sperms to the ovary
Pollen Tube | |
Seed | |
Cotyledon | |
Carpel |
It is combined to form a longitudinal wave.
It is combined to form a longitudinal wave.
Compression or Rarefaction | |
Compression and Rarefaction | |
Rarefaction | |
Compression |
Sound of frequency higher than 20,000 Hz are called.
Sound of frequency higher than 20,000 Hz are called.
Infrasound | |
Ultrasonic | |
Music | |
Noise |
The angle of incidence for which angle of refraction becomes 90o is called.
The angle of incidence for which angle of refraction becomes 90o is called.
Angle of incidence | |
Angle of refraction | |
Oblique angle | |
Critical angles |
The hottest star have the temperature.
The hottest star have the temperature.
27000oC | |
26000oC | |
29000 oC | |
28000oC |
Big Bang theory was first proposed in
Big Bang theory was first proposed in
1937 | |
1930 | |
1925 | |
1927 |
Blood is carried away from the heart in
Blood is carried away from the heart in
Veins | |
Ureters | |
Arteries | |
Nerves |
Organisms that make their own food are called.
Organisms that make their own food are called.
Autotrophs | |
Decomposers | |
Heterotrophs | |
Consumers |
Most of the changes in materials are of.
Most of the changes in materials are of.
Two main types | |
Four main types | |
Five main types | |
Three main types |
Which produces juice for the final digestion of proteins, fats and carbohydrates?
Which produces juice for the final digestion of proteins, fats and carbohydrates?
gallbladder | |
mouth | |
large intestine | |
pancreas |
What part of our body contracts and moves down when we inhale?
What part of our body contracts and moves down when we inhale?
alveoli | |
bronchioles | |
diaphragm | |
kidneys |
The place where an animal or plant lives and reproduces is called.
The place where an animal or plant lives and reproduces is called.
Habitat | |
Population | |
Community | |
Ecosystem |
Saliva starts the digestion of:
Saliva starts the digestion of:
Carbohydrates | |
Vitamins | |
Fats | |
Proteins |
Electric current is measured by
Electric current is measured by
Voltameter | |
Ammeter | |
Galvanometer | |
Barometer |
Which one is a producer in an ecosystem.
Which one is a producer in an ecosystem.
Lion | |
Plant | |
Rat | |
Hawk |
The lightest kind of hydrogen atom is.
The lightest kind of hydrogen atom is.
Protium | |
No kind | |
Deuterium | |
Tritium |
A large muscle that separates the chest cavity from the abdominal cavity and helps in breathing:
A large muscle that separates the chest cavity from the abdominal cavity and helps in breathing:
larynx | |
trachea | |
diaphragm | |
alveolus |
The process by which organisms produces more organisms.
The process by which organisms produces more organisms.
Cross pollination | |
Reproduction | |
Respiration | |
Pollination |