Which of the following best explains why scientists use space probes to collect data on Mars? Space probes are used to explore places that are too distant for telescopes to see. Space probes are used to explore distant galaxies because they are too far away for satellites to see. Space probes are used to explore places where Earth's atmosphere does not affect signals. Space probes are used to explore places that would be too dangerous for astronomers.

1)

i))the process of preparing food by green plants in the presence of sunlight is called photosynthesis.

ii) leaf is the site for photosynthesis.

iii) it takes place as,

6h2o+6co2=c6h12o6+602

answer: zinc is the substance which has a volume of 1.38 .

density is defined as the mass of an object per unit volume.

it can be calculated by dividing mass of a substance by its volume i.e.

si unit of density is kg per cubic meter and cgs unit of the same is gram per cubic centimeter.

now from the given data volume can be calculated by the formula .

hence, the volume of aluminium will be = which comes out to be 1.703 .

similarly, volume of zinc, chromium, and nickel will be 1.378 , 0.869 , and 0.356 respectively.