After harvest, the fields are sometimes burned to clear them in preparation for the next season. This helps in the removal of the plant material. Which of the following can it also help in?
making the soil softer and aerating it
increasing the water content in the soil
reducing the carryover of certain pests
preventing loss of soil by the action of wind
The table below shows the number of seeds per fruit for some plants. Based on the given data, which other characteristics of the plant could be predictedthe size of the seeds the size of the fruits the number of ovules per flower the number of ovaries per flower( the size of the seeds, the size of the fruits, the number of ovules per flower, the number of ovaries per flower )
The schematic diagram shown below represents the human circulatory system. Which all of the marked blood vessels in the schematic is a vein?
A
B
C
D
The drawing shows an apple falling to the ground. In which of the three positions does gravity act on the apple?
2 only
1 and 2 only
1 and 3 only
1, 2 and 3
Three pictures show the same plastic bottle filled with air at altitudes of 14,000 ft, 90000 ft, and 1000 ft respectively. The bottle gets crushed as the altitude decreases because the atmospheric pressure outside keeps with a decrease in altitude.
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