Answer:
correct option is d) summer solstice
Explanation:
we know that at summer solstice earth one pole is tilt maximum toward the sun and it happen twice in a year
once make it maximum noon and one make maximum night
and earth maximum tilt toward the Sun is about 23.44°
summer solstice, it is also known as mid summer
and
when in sky sun reach high position it make
so here correct option is is d) summer solstice
C its a stream, because thats a smaller part of a river
Answer: Hello your question is open ended hence I will provide a more general answer
answer : Use of systematic sampling method
Explanation:
To obtain a representative sample of pebbles ( more representative sample ) Leaners should use <em>Systematic sampling method</em> . This is because systematic sampling covers the the entire population by obtaining samples from the population of pebbles at regular intervals hence it is a more comprehensive system of sampling when compared to Random and stratified sampling