Question 1 :
<div><span>Identify A in the given food chain.</span></div><div><span> Plant $\rightarrow$&#160;</span><span>Insect$\rightarrow$ Frog $\rightarrow$ A $\rightarrow$ Eagle.</span></div><div><span></span></div><div><span></span></div>

Question 2 :
Select the option that correctly identifies A, B and C in the given table.<table class="wysiwyg-table"><tbody><tr><td>Organism</td><td>Trophic level</td><td>Food chain</td></tr><tr><td>Eagle</td><td>A</td><td>Grazing</td></tr><tr><td>Earthworm</td><td>Primary consumer</td><td>B</td></tr><tr><td>Frog</td><td>C</td><td>Grazing</td></tr></tbody></table>

Question 3 :
Choose the correct food chain given below&#160;where A is grass, M is buffalo and J is a lion.<span><br/></span>

Question 7 :
<div><span>Which of the following will occupy the second trophic level in a food chain?</span></div>

Question 9 :
In the given food chain, suppose the amount of energy at fourth trophic level is 3 kJ, what will be the energy available at the producer level?<br/>Grass $\rightarrow$ Grasshopper $\rightarrow$ Frog $\rightarrow$ Snake $\rightarrow$ Hawk<br/>

Question 10 :
&nbsp;Which group of organisms are not constituents of a food chain?<br>(i) Grass, lion, rabbit, wolf<br>(ii) Plankton, man, fish, grasshopper<br>(iii) Wolf, grass, snake, tiger<br>(iv) Frog, snake, eagle, grass, grasshopper<br>

Question 11 :
In the grassland ecosystem, the number of primary producers is about 6 million. The number of top carnivores supported by it would be ______.

Question 13 :
An examples of a producer in the aquatic food web would be -

Question 14 :
Ten percent law of energy transfer in a food chain was enunciated by___________

Question 15 :
In the following food chain, $100$ J of energy is available to the lion. How much energy was available to the producer in the given food chain? &#160;<br/>Plants $\longrightarrow$ Deer&#160;&#160;$\longrightarrow$&#160; Lion

Question 18 :
The food chain in which microorganisms break down the energy rich compounds synthesised by producers is

Question 22 :
Which trophic level organism is missing is a given food chain?<br>Oak trees -&gt;squirrels -&gt; foxes -&gt; blowflies

Question 28 :
What is the one way flow of energy in an ecosystem called?

Question 32 :
Which food chain has a mixed group in terms of trophic levels?<span><br></span>

Question 34 :
The elimination of this pest under the Four Pests Campaign of China that was initiated in $1958$ upset the ecological balance and enabled crop-eating insects to proliferate. Identify the pest.

Question 35 :
Tree $\rightarrow$ Caterpillar&#160;$\rightarrow$&#160;Robin&#160;$\rightarrow$&#160;Cat represents&#160;a food chain. In this food chain, if the tree can&#160;provide 100000 calories of energy, how much&#160;calories of energy will be available to the robin&#160;and the cat?

Question 36 :
In which of the following food chains, the Pyramid of Numbers will be always inverted?<span><br></span>

Question 39 :
In which of the following countries Slow Food Movement took place to combat fast food?<span><br></span>