Environmental Science and Ecology - Mock Test 13

Question 121

Food chain in which micro-organisms breakdown the food formed by primary producers is

A) parasitic food chain B) detritus food chain C) consumer food chain D) predator food chain

---

No Details

Question 122

Pyramid of numbers in a grassland/true ecosystem is

A) always inverted B) always upright C) both a and b D) spindle-shaped

---

No Details

Question 123

Trophic levels are formed by

A) organisms linked in food chain B) only plants C) only animals D) only carnivores

---

No Details

Question 124

The first link in any food chain is always a green plant because

A) they are widely distributed B) they are firmly fixed to the soil C) they alone have a capacity to fix atmospheric CO2 in the presence of sunlight D) all of the above

---

No Details

Question 125

The correct path of energy flow in an ecosystem is

A) Producers → Carnivores → Herbivores → Decomposers B) Producers → Herbivores → Carnivores → Decomposers C) Herbivores → Carnivores → Producers → Decomposers D) Herbivores → Producers → Carnivores → Decomposers

---

No Details

Question 126

Biological equilibrium is found among the

A) producer plants B) consumers and producers C) decomposers D) producers, consumers and decomposers

---

No Details

Question 127

Ecosystem has two components

A) plants and animals B) weeds and trees C) biotic and abiotic D) frog and men

---

No Details

Question 128

Green plants constitute

A) first trophic level B) second trophic level C) third trophic level D) complete food chain

---

No Details

Question 129

Maximum solar energy may be trapped by

A) growing grasses B) planting trees C) growing algae in large water bodies D) more cultivation of crop plants

---

No Details

Question 130

Good soil is

A) which holds whole of the water that enters into it B) which allows percolating the water slowly from it C) which allows water to pass very quickly from it D) which allows limited amount of water to retain into it

---

No Details