Flora means plants and fauna means animals there is agreat impact if we loss them.plants make food with the help of sunlight they take co2 from air and gives o2 . herbivores animals survive only by eating plants and carnivores by eating hebivores all are interrelated if plants are not there animals cant survive and if herbivores die than carnivores will also bz they will not get food and we humans depends on both plants and animals if they both are notthere we will also die
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impact of loss of fauna is that

imbalance n the ecosystem
food chain gets affected

loss of flora

more pollution 
oxygen content will decrease
global waming

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2 √ó sin6theta +cos 6 theta -3 sin4 theta +cos 4 theta =0
its ok