14.Why do we eat some roots like carrot,tapioca,sweet potato?
15.Which of the following leaves have reticulate venation?Give reasons
wheat, Tulsi, grass, coriander.
16.How are plants (eg.cactus) adapted to grow in deserts?
17.Animals cannot live without plants. Justify the statement by your
reasons.
17.What happens if it does not rain for a long period?
18.Why it is better to use compost instead of chemical fertilizer?
Answers
Answer:
because we hungry !!!!!!!!!!!!!!!!!
Answer:
14) It is true root vegetables are considered taproots, which are loosely defined as roots that grow downward into the ground. Taproots can be subdivided into tuberous roots like sweet potatoes, yams and fleshy roots like carrots and beets. ... The taproot is considered the main root of a primary-root system.
15) The leaves of tulsi, coriander, and China rose have reticulate venation, whereas maize, grass, and wheat have parallel venation. In leaves with reticulate venation, the veins are arranged in a net-like pattern.
16) The stomata of many cacti lie deep in the plants' tissues. This adaptation helps cacti reduce water loss by keeping the hot, dry wind from blowing directly across the stomata. The leaves and stems of many desert plants have a thick, waxy covering.
17) Plants are producers And Animals are consumers so without plants Animals will not get food and Plants also produce Oxygen and without Plants Animals will not get Oxygen too. So without Plants,Animals will die.
18) Yes, it is better to use compost instead of chemical fertilizers. Compost is made out of natural or organic things like plant and animal wastes which do not cause any pollution. Whereas the chemical fertilisers are prepared from harmful chemicals which cause soil and water pollution.