Answer:
Explanation:
Given
Minute hand length =16 cm
Time at a quarter after the hour to half past i.e. 1 hr 45 min
Angle covered by minute hand in 1 hr is 360 and in 45 minutes 270
(c)For the next half hour
Effectively it has covered 2 revolution and a quarter
angle turned 
(f)Hour after that
After an hour it again comes back to its original position thus displacement is same =25.136
Angle turned will also be same i.e. 
The type of pollution when small particles of soil are suspended in the water is called Suspended Matter Pollution. <span>This type of pollution happens when soil enter the water and do not mix in with the water molecules.</span>
Because a star is a peace of the sun and the sun is hot so the star get it energy from the Sun .
Answer: a) 400-450nm and c) 550-700nm
Explanation:
photosynthetic organisms, absorbs light with wavelengths of 430 nanometers (nm) and red light of 662 nm
