(a) 15(b) 29(c) 36 ✅(d) 32

(a) Granite(b) Marble ✅(c) Basalt(d) Sandstone

(a) Pacific(b) Atlantic(c) Indian(d) Arctic ✅

(a) Wind breaks(b) Mangroves(c) Shelter belts ✅(d) Protection

(a) Low Carbon Steel(b) Stainless Steel(c) Wrought Iron(d) Cast Iron ✅

(a) Ice Pellets(b) Atmospheric Condensation(c) Fine Droplets(d) Fog ✅

(a) India ✅(b) China(c) United States(d) Brazil

(a) Lake Malawi(b) Lake Victoria ✅(c) Lake Tanganyika(d) Lake Zambezi

(a) High oil content in seeds(b) Richness in unsaturated fatty acids ✅(c) Extended shelf-life of oil(d) Low uric acid content in oil

(a) Isotherms(b) Isobars(c) Isoseismic lines ✅(d) Isohalines

(a) Mesosphere ✅(b) Stratosphere(c) Thermosphere(d) Exosphere

(a) Two parts(b) Three parts(c) Four parts ✅(d) Five parts

(a) 120 km(b) 145 km ✅(c) 90 km(d) 30 km

(a) Cirrus(b) Nacreous(c) Stratocumulus(d) Noctilucent ✅