Question
Match the following influential figures to their
contributions to the environmental movement:Solution
The correct matches are: Rachel Carson as the author of Silent Spring (A-3), Gaylord Nelson as the founder of Earth Day (B-2), and James Hansen as a pioneer in global warming research (C-1).
Which of the following is not a characteristic of prokaryotic cells?
Which of the following is a cell surface receptor?
Consider the reaction-
Copper sulphate solution (blue) + Iron → Iron sulphate soluton + Copper What is the colour of the iron sulphate solution?
Name the largest gland found in human body :
The escape velocity from a planet is 11.2 km/s. What is the minimum kinetic energy per kg needed to escape?
1. 6.3 x 107 J/ Kg
<...A metal plate with a circular hole at the centre is heated. What will happen to the area of the hole?
Before X-ray examination (coloured X-ray) of the stomach, patients are given suitable salt of barium because
A wire carrying a current of 4.0 A is shaped into a circular arc of radius 8.0 cm. If the arc subtends an angle of 90° at the center, what is the magn...
Which of the following statements is true about cell signaling?
The spokes used in the wheel of a bicycle increase its –
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