Question

Which of following is not a physical factor in ecosystem? / ਪਰਸਥਿਤਿਕ ਪ੍ਰਬੰਧ ਵਿੱਚ ਹੇਠ ਲਿਖਿਆ ਚੋ’ ਕਿਹੜ੍ਹਾ ਭੌਤਿਕ ਕਾਰਕ ਨਹੀ ਹੈ? / पारिस्थितिक तंत्र में निम्नलिखित में से कौन सा भौतिक कारक नहीं है ? *

(1) Sunshine / ਧੁੱਪ / धूप

(2) Rain / ਵਰਖਾ / वर्षा

(3) Soil / ਮਿੱਟੀ / मिट्टी

(4) Algae / ਕਾਈ / शैवाल (काई)​

Answer 1

ANSWER-;

3) SOIL.

Explanation-;

It includes the interaction of the living things which are the biotic components in a given area with the non-living environment which are the abiotic factors such as temperature, weather, rainfall, earth, sun, soil, wind, and minerals. Hence, abiotic components form the physical factors of the ecosystem.

Answer 2

Answer:

Algae are not the physical factor in the ecosystem. The correct option is (4)

Explanation:

• Biotic and abiotic factors are the two components of an ecosystem.
• Abiotic factors (nonliving components) like air, water, soil, wind, light, and temperature are the physical factors of an environment. While the biotic factors are comprised of three categories of living organisms and those are producers (i.e.plants), consumers (i.e animals), and decomposers (i.e.bacteria and fungi).

So, we can say that algae are not the physical factor in the ecosystem.

Hence, the correct option is (4)