Tag: abiotic components

Questions Related to abiotic components

Who of the following are the ultimate sources of energy for carnivorous organisms in the food chain of a forest ecosystem?

biology living in harmony climate factors abiotic components organisms and environment

  1. Sun

  2. Photosynthetic species

  3. Herbivorous species

  4. Decomposer species

Show answer
Correct Option: A
Explanation:

For all organisms, the sun, or solar radiation, is the ultimate source of energy. Plants are primary producers of energy from the sun. Plants use sun, chlorophyll, water, carbon dioxide and nutrients to manufacture glucose, an alternate form of energy. 

So, the correct option is 'Sun'.

Rainfall pattern depends on

biology living in harmony climate factors abiotic components organisms and environment

  1. The underground water table

  2. The number of water bodies in an area

  3. The density pattern of human population in an area

  4. Prevailing season in an area

Show answer
Correct Option: A
Explanation:

The Rainfall pattern depends on the number of water bodies in an area because which area has more water bodies that area evaporates more water and this evaporation increases the precipitation water cycle and hence initiate  the rainfall 

So option 'b' the number of water bodies in an area is the correct answer. 

Migration in birds is guided in part by-

biology living in harmony climate factors abiotic components organisms and environment

  1. Celestiial navigation

  2. Temperature chnages

  3. Territorial aggression

  4. All of the above

Show answer
Correct Option: A
Explanation:

Birds that nest in the Northern Hemisphere tend to migrate northward in the spring to take advantage of burgeoning insect populations, budding plants and an abundance of resting locations. This is guided by celestial navigation with a sextant.

So, the correct option is 'Celestial navigation'.

Low clouds retard surface cooling at night better than clear skies because:

biology living in harmony climate factors abiotic components organisms and environment

  1. The clouds absorb and radiate infrared energy back to earth

  2. The water droplets in the clouds reflect infrared energy back to earth

  3. The clouds start convection currents between them

  4. The clouds are better conductors of heat than is the clear night air

Show answer
Correct Option: A

If a glass of water were surrounded by saturated air:

biology living in harmony climate factors abiotic components organisms and environment

  1. The level of the water in the glass would slowly decrease

  2. The water's temperature would slowly increase

  3. The level of the water in the glass would not change

  4. The water's temperature would slowly decrease

Show answer
Correct Option: C

The primary source of energy for the earth's atmosphere is:

biology living in harmony climate factors abiotic components organisms and environment

  1. Energy from within the earth

  2. The sun

  3. Erupting volcanoes

  4. Lightning discharges associated with thunderstorms

Show answer
Correct Option: B

If you want to keep an object cool while exposed to direct sunlight,

biology living in harmony climate factors abiotic components organisms and environment

  1. Put it inside a brown paper bag

  2. Wrap it in black paper

  3. Wrap it in aluminum foil with the shiny side facing inward

  4. Wrap it in aluminum foil with the shiny side facing outward

Show answer
Correct Option: D

The lag in daily temperature refers to the time lag between the:

biology living in harmony climate factors abiotic components organisms and environment

  1. Time of maximum solar radiation and the time of maximum temperature

  2. Time of minimum temperature and the time of maximum solar radiation

  3. Minimum and maximum temperature for a day

  4. Minimum and maximum solar energy received at the surface for a given day

Show answer
Correct Option: A

What are sources of energy an ecosystem rely on?

biology living in harmony climate factors abiotic components organisms and environment

  1. Wind energy

  2. Sunlight and Chemical energy

  3. Thermal Energy

  4. Wave energy

Show answer
Correct Option: B

In which ecosystem sun energy is replaced by highly concentrated potential energy of chemicals and fuels?

biology living in harmony climate factors abiotic components organisms and environment

  1. Man subsidized solar power ecosystem

  2. Unsubsidized natural solar powered ecosystem

  3. Naturally subsidized solar powered ecosystem

  4. Fuel power ecosystem

Show answer
Correct Option: D