The vernal equinox occurs in march in the northern hemisphere.

true
false

True

Explanation:

The vernal equinox are the two days in the year in which the sun is exactly above the Equator, one for each hemisphere.

In the Northern Hemisphere, it happens when the sun crosses the Equator going North, marking the beginning of the spring in this hemisphere. It happens in March. So this affirmative is True

the correct answers are:

a - pacific plate;

it is the biggest oceanic tectonic plate. surrounded on all sides by continental tectonic plates, it is submerging and gradually becoming smaller and smaller.

b - north american plate;

huge continental plate, occupying big portion of the northern hemisphere.

c -eurasian plate;

alongside the north american plate, it is one of the two dominant continental plates in the northern hemisphere.

d - indian plate;

a small continental plate, that has been part of gondwanaland initially, but after the break up of it, moved towards northeast and pushed into the eurasian plate that was once part of laurasia.