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WorksheetsEVS PRACTICE
Total questions: 15
Worksheet time: 8mins
Which of the following is not abiotic?
Flora
Sunlight
Water
Temperature
Earth’s surface is covered by oceans which contains about _______ % of the total water present on it.
97.4
94.7
95.3
98.4
Which soil horizon has the most fertile soil ?
Horizon A
Horizon B
Horizon C
Bedrock
We must go for _____ mining where we use microbial organisms for mining purpose towards the controlling the depletion of Mineral resources
bio
nano
rapid
terrestrial
______ mainly lies in rocks and fossils and is excavated by human for using as fertilizer
Phosphorus
Carbon
Nitrogen
Oxygen
The nutrient cycle process is regulated by (a) web pathways that decompose matter into mineral nutrients
The productivity of an ecosystem is the rate at which (a) energy is fixed by the vegetation of the ecosystem.
As a measure towards sustainable agriculture, reduce use of chemicals such as fertilizers and pesticides to prevent (a) pollution
Land is the (a) portion of earth’s surface
Solar Cell are called photo voltaic cells which converts light directly into mechanical energy
True
False
Forests add humus to the soil and aid in enriching fertility
True
False
Natural ecosystem operates by themselves under artificial conditions without interference by humans
True
False
Decomposers are ________ agents of nature.
Unrecyclable
Recycling
Disposable
Single use
Terracing is an effective method to control soil erosion in ____
hilly areas
desert areas
plains
riverine areas
A collapse of a mass of earth or rock from a mountain is known as landslide
True
False
