What are the latitude and longitudes? Which of these I maginary lines are more significant with referecne to diversification of living beingS? Why?

What is the single term that answers all the following question? OR What decides whether you are blue eyed or brown eyed? OR Why does wheat grain germinate to produce what plant and not rice plant? OR Which acid molecules are present in nuclei of living cells?

Observe the diagram and answer the question: (i) Which energy is generated from the power plant ? ii. State its source. Which is more eco-friendly - power generation from coal or power generation from natural gas ? Why ?

Paragraph-based questions Read the paragraph and answer the questions given below: Disasters can be properly classified into three categories. viz. natural disasters, technological disasters and man-made disasters. The forces that cause natural disasters cannot be controlled. Moreover, they are becoming more frequent in the current years due to phenomena of climate change. On and off incidences of cyclones, cloud bursting, floods, etc. are creating havoc in the lives of people. Technological disasters are due to improper and callous behaviour at the different processes carried out in technical establishments. Man-made disasters are conflicts arising due to different religions, regions and terrorism. Which type of disasters were very common in western maharastra in recent times? why?

Paragraph-based questions Read the paragraph and answer the questions given below: Disasters can be properly classified into three categories. viz. natural disasters, technological disasters and man-made disasters. The forces that cause natural disasters cannot be controlled. Moreover, they are becoming more frequent in the current years due to phenomena of climate change. On and off incidences of cyclones, cloud bursting, floods, etc. are creating havoc in the lives of people. Technological disasters are due to improper and callous behaviour at the different processes carried out in technical establishments. Man-made disasters are conflicts arising due to different religions, regions and terrorism. Which disasters cannot be controlled? why?

Read the following paragraph and answer the following questions given below it : Construction of a compound microscope : (i) Acompound microscope consists of a metal tube fitted with two convex lenses at the two ends. These lenses are called the objective lens ( the lens directed towards the object ) and the eyepiece ( the lens directed towards the eye ). Both the lenses are small in size , but the cross section of the objective lens has a short focal length . the focal length of the eyepiece is more than that of the objective lens . (ii) The metal tube is mounted on a stand . thr principal axes of the objective lens and the eyepiece are along the same line . The distance between the object and objective lens can be changed with a screw . It is possible to change the distance between the objective lens and the eyepiece. Working : (i) The object to be observed is illuminated and placed in front of the objective lens. slightly beyond the focal length of the objective lens. it's real , inverted and enlarged image is formed by the objective lens on the other side. (ii) This intermediate image lies with in the focal length of the eyepiece. It serves as an object for the eyepiece. The eyepiece works as a simple microscope . the final image is virtual, highly enlarged and inverted with respect to the original object . It can be formed at the minimum distance of distinct vision from the eyepiece . The final image is observed by keeping the eye close to the eyepiece. Use: This microscope is used to observe blood cells , microorganisms , etc. In a compound microscope , which lens has greater focal length ?

Read the following paragraph and answer the following questions given below it : Construction of a compound microscope : (i) Acompound microscope consists of a metal tube fitted with two convex lenses at the two ends. These lenses are called the objective lens ( the lens directed towards the object ) and the eyepiece ( the lens directed towards the eye ). Both the lenses are small in size , but the cross section of the objective lens has a short focal length . the focal length of the eyepiece is more than that of the objective lens . (ii) The metal tube is mounted on a stand . thr principal axes of the objective lens and the eyepiece are along the same line . The distance between the object and objective lens can be changed with a screw . It is possible to change the distance between the objective lens and the eyepiece. Working : (i) The object to be observed is illuminated and placed in front of the objective lens. slightly beyond the focal length of the objective lens. it's real , inverted and enlarged image is formed by the objective lens on the other side. (ii) This intermediate image lies with in the focal length of the eyepiece. It serves as an object for the eyepiece. The eyepiece works as a simple microscope . the final image is virtual, highly enlarged and inverted with respect to the original object . It can be formed at the minimum distance of distinct vision from the eyepiece . The final image is observed by keeping the eye close to the eyepiece. Use: This microscope is used to observe blood cells , microorganisms , etc. State which distance is adjusted to observe the object with a compound microscope ?

In the adjoining figure, the radius of a circle with centre C is 6cm, line AB is a tangent at A. Answer the following question (i) What is the measure of angle CAB ? Why? (ii) What is the distance of point C from line AB? Why? (iii) d(A,B)=6cm, find d(B,C). (iv) What is the measure of angleABC ? Why?

Read the paragraph and answer the following questions: I am a penguin.I live in polar region covered by snow. My abdomen is white. My skin is thick with a layer of fat underneath. My body is spindle shaped. My wings are small. My toes are webbed. We live in flocks. Which geographical region do i inhabit? Why?

Read the paragraph and answer the following questions: I am a penguin.I live in polar region covered by snow. My abdomen is white. My skin is thick with a layer of fat underneath. My body is spindle shaped. My wings are small. My toes are webbed. We live in flocks. Which adoptions should you have to enable you to live permanently in the polar region? why?