holiday h w class viii 2019
1. TAKE A LOOK AT THIS VEHICLE AND LOOK CLOSELY AT THE TYRE . HOW IS IT HELPFUL IN DRIVING THIS VEHICLE THROUGH MARSHY AREA ? 2.IN A CERTAIN VILLAGE IN THE HILLS THE VILLAGERS DECIDED THAT THEY ARE NOT GOING TO TAKE THEIR COWS AND GOATS TO THE HILLS FOR GRAZING INTEAD THE PEOPLE WILL GO TO THE HILL AND HARVEST THE GRASS AND STALL FEED THEIR LIVESTOCK. THE REASON GIVEN WAS TO PREVENT SOIL EROSION. IS IT CORRECT TO SAY COWS AND GOATS CAN CAUSE MORE SOIL EROSION BY WALKING ON THE HILLS. SHOWN ABOVE ARE THE FOOT PRINTS OF MAN AND HOOFPRINT OF A COW.CAN YOU TELL ME WHY STALL FEEDING IS RECOMMENDED FOR THIS. ( CLUE ; APPLY WHAT YOU HAVE LEARNT IN PHYSICS i,e pressure). 3. IN THE PICTURE SHOWN BELOW THE FIRST ONE IS A NYLON FISHING NET AND THE SECOND ONE IS A JUTE FISHING NET . YOU HAVE TO TELL ME WHY FISHERMEN PREFER NYLON NETS TO THE ONES MADE OF JUTE? 4. THE HYDROGEN AND HELIUM BALLONS WHICH ARE USED TO STUDY WEATHER EXPLODE WHEN THEY REACH THE UPPER LAYER OF TROPOS