61. The pyramid of number of a parasitic food chain in forest ecosystem is
62. The intensity of earthquake is measured in ____________
63. The most widely used pesticides function by disrupting
64. Diversity of organisms include three Domains such as
65. What do you call the rain that contains chemical waste and cause damage to plants and animals?
66. Water heats up ______ and cools off _____ than land.
67. In July, at middle latitudes in the Northern Hemisphere, the day is ____ long and is ____ with each passing day.
68. The effect of interspecific competition on niches is to make them
69. The carrying capacity of a population is determined by its
70. The order of succession in a lithosere or xerosere is
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