Question
What is the importance of forest as a resource?
✓
Answer
Forests are renewable natural resource and serve as:
- Source of food and shelter for wildlife thereby play important role in conservation of biodiversity.
- Help improving water holding capacity of soil and prevent soil erosion.
- Source of rainfall and moisture.
- Source of atmospheric oxygen and remove harmful carbon dioxide from atmosphere during photosynthesis thereby turning a harmful gas into the only source of organic compounds on earth.
- Regulates water cycle.
- Serves as source of fuel, wood, timber, fruits, resins, food etc.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Define pollination. Explain the different types of pollination. List two agents of pollination? How does suitable pollination lead to fertilization?
Draw the structure of a neuron and explain its function.
When a black metal compound $X O$ is heated with a colourless gas $Y_2$, then metal $X$ and another compound $Y _2 O$ are formed. Metal $X$ is red-brown in colour which does not react with dilute acids at all. Gas $Y _2$ can be prepared by the action of a dilute acid on any active metal. The compound $Y _2 O$ is a liquid at room temperature which can turn anhydrous copper sulphate blue.
a. What do you think is metal $X$ ?
b. What could be gas $Y_2$ ?
c. What is compound XO ?
d. What is compound $Y _2 O$ ?
e. Write the chemical equation of the reaction which takes place on heating XO with $Y _2$.
f. What type of chemical reaction is illustrated in the above equation?
→a. What do you think is metal $X$ ?
b. What could be gas $Y_2$ ?
c. What is compound XO ?
d. What is compound $Y _2 O$ ?
e. Write the chemical equation of the reaction which takes place on heating XO with $Y _2$.
f. What type of chemical reaction is illustrated in the above equation?
- Why did Mendeleev have gaps in his periodic table?
- State any three limitations of Mendeleev’s classification.
- How does electronic configurations of atoms change in a period with increase in atomic number?
Give reasons for the appearance of new combinations of characters in the $F_2$ progeny.
→Esters are When ester treated with an alkali, the reaction gives ethanol and sodium ethanoate. This reaction is called saponification reaction because this reaction forms the basis of preparation of soap. This can be given by following equation.
The circuit diagram given below shows the combination of three resistors $R_1 R_2$ and $R_3$ :
Find:
→Find:
- Total resistance of the circuit.
- Total current flowing in the circuit.
- The potential difference across R.
Mendeleev predicted the existence of certain elements not known at that time and named two of them as Eka-silicon and Eka-aluminium.
- Name the elements which have taken the place of these elements.
- Mention the group and the period of these elements in the Modern Periodic Table.
- Classify these elements as metals, non-metals or metalloids.
- How many valence electrons are present in each one of them?
Write the names and symbols of two most reactive metals belonging to group I of the periodic table. Explain by drawing electronic structure how either one of the two metals reacts with a halogen. With which name is the bond formed between these elements known and what is the class of the compound so formed known? State any four physical properties of such compounds.
- Write the function of each of the following parts of human eye:
- Cornea.
- Iris.
- Crystalline lens.
- Ciliary muscles.
- Why does the sun appear reddish early in the morning? Will this phenomenon be observed by an astronaut on the Moon? Give reason to justify your answer.