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Q.11) Plant development is influenced by

(A) quality of light only

(B) quality and quantity of light

(C) quality and duration of light

(D) quality, quantity and duration of light

Q.12) Photosynthesis takes place faster in

(A) yellow light

(B) white light

(C) red light

(D) darkness

Q.13) Other than spreading malaria, anopheles mosquitoes are also vectors of

(A) dengue fever

(B) filariasis

(C) encephalitis

(D) yellow fever

Q.14) Plants that grow in saline water are called

(A) halophytes

(B) hydrophytes

(C) mesophytes

(D) thallophytes

Q.15) Pyorrhoea is a disease of the

(A) nose

(B) gums

(C) heart

(D) lungs

Q.16) O2 released in the process of photosynthesis comes from

(A) CO2

(B) water

(C) sugar

(D) pyruvic acid

Q.17) Phloem is a tissue found in

(A) reproductive organs of animals

(B) plants

(C) insects

(D) mammals

Q.18) N2 content is kept constant in the biosphere due to

(A) N2 fixation

(B) industrial pollution

(C) nitrogen cycle

(D) absorption of N2

Q.19) Plants developing in dry conditions are

(A) xerophytes

(B) mesophytes

(C) lithophytes

(D) hydrophytes

Q.20) Plants growing on sand are called as

(A) chasmophytes

(B) oxylophytes

(C) lithophytes

(D) psammophytes

ਜੇਕਰ ਤੁਸੀ ਕਿਸੇ ਵੀ ਸਰਕਾਰੀ ਨੌਕਰੀ ਬਾਰੇ ਜਾਣਕਾਰੀ ਲੈਣਾ ਚਾਹੁੰਦੇ ਹੋ ਤਾ ਉੱਤੇ ਦਿੱਤੇ ਕੰਮੈਟ ਬਾਕਸ ਵਿੱਚ ਕੰਮੈਟ ਕਰ ਸਕਦੇ ਹੋ ਧੰਨਵਾਦ ਅਰਨ ਮਨੀ ਜੋਬਜ ਟੀਮ