A. To collect and focus sound waves.
Answer:
the first and second sentence
Explanation:
Triploid organisms are normally sterile as their lack of homologous chromosomes prevents pairing during meiosis. This can be useful to plant breeders, for example in banana cultivation: sterile triploid bananas can be propagated asexually and will not contain any seeds.
Producers absorb the energy from the sun and the energy gets transferred via consumption in this order producers ->primary consumers -> secondary consumers -> tertiary consumers
The answer, though i'm not quite sure' should be sulphate aerosols, though i think that is actually what the clouds are made out of. So the answer might be instead just stratospheric ash clouds