581: Higher plants take up Nitrogen as:
(a) Nitrites only
(b) Nitrates only
(c) Nitrates and ammonia
(d) Urea
582: The first metal used by the man was:
(a) Iron
(b) Copper
(c) Aluminium
(d) Gold
583: Which of the following is/are found in plant cells but not in those of animals ?
(a) Plastid & Cellular wall
(b) Chromosome
(c) Mitochondria & Golgi apparatus
(d) Cell wall & lysozyme
584: "You might see a few curious Danes around, but that is because ........ used to be Danish outpost. This quaint town with its fort and a beautiful church, the New Jerusalem, empty streets and deserted beach front is a quaint gem." The place referred to in this quotation lies on the
(a) Tamil Nadu coast
(b) Kerala coast
(c) Karnataka coast
(d) Goa coast
585: Which one of the following countries is the largest producer of fuelwood in the world ?
(a) Indonesia
(b) Russia
(c) India
(d) China