Abiotic Components

Q. How can we consider plants to be alive ? Give examples also

Q. Which of the following is an abiotic component of an ecosystem?

1. Bacteria
2. Plants
3. Fungi
4. Humus

Q. How do we tell the difference between what is alive and what is not?

Q.

Define the life process of plant?

Q.

What are the abiotic factors of a pond ecosystem?

Q.

Why are green plants called producers ?for 2 marks

Q.

Which of the following is an abiotic component of the ecosystem?

1. bacteria

2. humus

3. plants

4. fungi

Q.

Current concentration of $C{O}_2$ in atmosphere is:

1. 270 ppmv

2. 350 ppmv

3. 430 ppmv

4. 500 ppmv

Q.

What are the challenges faced by human beings in the environment?

Q. How do butterflies contribute to environmental balance ?

Q.

Plants and animals living in a habitat are known as its abiotic components.

1. False

2. True

Q.

What are the different types of ecosystems?

Q. Which among the following sets constitute an abiotic group?

1. Sunlight, plants, fungi
2. Plants, animals, bacteria
3. Sunlight, plants, animals
4. Sunlight, temperature, water

Q.

What are the two types of eco-system?

Q.

Water is the abiotic component of a pond ecosystem

1. True
2. False

Q. Grassland, forest and _____ are examples of terrestrial ecosystems.

1. pond
2. desert
3. river
4. sea

Q.

Question 38
Explain some harmful effects of agricultural practices on the environment.

Q.

In which of the following form is oil trapped inside the earth?

1. Pool of liquid

2. Gaseous form

3. Droplets trapped between the rocks

4. Black solid

Q.

Abiotic factor affect an organism

1. False

2. True

Q. Which among the following are abiotic components?

1. Air
2. Water
3. Birds
4. Soil

Q. Which of the following statement is incorrect?

1. Producers prepare their own food from inorganic compounds
2. Plants convert solar energy into chemical energy
3. All green plants and blue-green algae are producers
4. Green plants get their food from organic compounds

Q. The abiotic component of the pond ecosystem is .

1. light
2. fish
3. algae

Q. The most significant source of energy in the solar system is.

1. Sun
2. Moon
3. Stars
4. Mercury

Q. The direction of energy flow is

1. Producers $\to$ Herbivores $\to$ Decomposers $\to$ Omnivores
2. Producers $\to$ Carnivore $\to$ Herbivores $\to$ Decomposers
3. Decomposers $\to$ Carnivores $\to$ Herbivores $\to$ Producers.
4. Producers $\to$ Herbivores $\to$ Carnivores $\to$ Decomposers

Q. The part of the earth comprising the soil, air, and water which sustains life is called:

1. Lithosphere
2. Biosphere
3. Hydrosphere
4. Atmosphere

Q. Abiotic components consist of

1. Land
2. Air
3. Water
4. Sand

Q. Which of the abiotic factor(s) in water affect(s) the kind of species that thrive in the aquatic environment?

1. pH
2. Chemical composition
3. Salinity
4. Precipitation

Q. Which among the following sets constitute an abiotic group?

1. Sunlight, plants, animals
2. Sunlight, temperature, water
3. Sunlight, plants, fungi
4. Plants, animals, bacteria

Q. A food chain is made up of ____.

1. biotic components
2. abiotic components
3. habitats
4. ecosystems

Q. Some of the resources on the Earth are limited.

1. True
2. False